PO174 and PO171 codes, 2000 Mercury Sable

Page 1 of 3  
My two year inspection is due this month and wouldn't you know that my service light comes on with the two subject codes when I had it read by Advance. Researching on here leads to a myraid of possibilities, just
not sure where to start. The Advance tech immediately said O2 sensor, but researching on here has me thinking that is a false diagnosis.
Funny thing is that I just had the car in for an oil change three weeks ago, and the light was on when I got the car back. Someone had suggested the dipstick not inserted completely, so I made sure it was. Still didn't change the light.
I'm wondering if somehow my mechanic did something inadvertently while he was changing the oil.... knocked a hose off, etc. I took a quick look, but not sure what all to check. A hose could be bad or disconnected and I wouldn't spot it.
The light has come on in the past and I always equated it to maybe too much water in the gas. It would go back off say, after a gas refill, and it never affected inspection. I'm thinking of just filling the tank first and adding a bottle of drygas before doing anything else.
Any ideas here to solve this would be welcome. The car doesn't seem to be running badly at all, can't tell any difference in running.
Thanks in advance, Sam
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Sat, 03 Jan 2015 05:24:01 -0500, Sam Seagate

You are getting a system too lean error on both banks. I suspect you are running low octain ethanol enhanced fuel. My 2003 Taurus has thrown that code a few times and filling with Shell Premium gas (0% ethanol) has solved the problem. The code needs to be cleared and the drive cycle completed before inspection. Not likely to be you O2 sensors - so save your money. Cleaning the MAF sensor may help too.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 01/03/2015 01:54 PM, snipped-for-privacy@snyder.on.ca wrote:

Yes, I always get the standard, lower octane gas. Did add dry gas today upon refilling (perhaps I should have filled with premium too but did not).
You have any links/ vids on cleaning the MAF sensor?
Any way I can clear the code at home? I don't have the code reader and I had Advance Auto read it for me. Would disconnecting the battery do it?
Thanks for your response!
Sam
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Sat, 03 Jan 2015 14:42:54 -0500, Sam Seagate

Buy yourself a cheap code reader that has reset cabability. They are available for about $20 - something like an autel 300 series. Look up "clean ford MAF" - there are likely about 100 you tube videos and instractables.
Dry-Gas will often cause the engine to run leaner - it's just like ethanol.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 01/03/2015 05:53 PM, snipped-for-privacy@snyder.on.ca wrote:

Interesting. I never realized that there was a difference with these additives, although I noticed that some of them contained ethanol and others not. I guess I should have used the one that did not contain ethanol. Any way to counteract what I've added, or just drive almost until empty and the get premium gas and/or non-ethanol additive?
I have one of the cheap code readers on the way.
Sam
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Sun, 04 Jan 2015 04:57:59 -0500, Sam Seagate

ANYTHING added to the fuel in any amount that is not gasoline changes the mixture. If you are using ethanolg fuel to start with, adding anything other than ethanol free gasoline will get you to less than 95% gasoline - which your 2000 model year car is NOT designed for. Run it low on fuel then fill up with ethanol free gasoline - reset the CEL and see what happens.
Also, check ALL vacuum hoses. If they fit loose, cut the end back half an inch and re-install, or replace the hose.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 01/04/2015 10:16 PM, snipped-for-privacy@snyder.on.ca wrote:

First chance I get, I will refill with premium. Still trying to run the current tank low with long trips and such. Partially retired, so running around takes far less gas than it used to.
Any idea where I could find a vacuum diagram for this car? I haven't been able to find one online with googling. So far, I've done both the propane and carb cleaner spray methods on just about every hose I could see and the car does not run any differently, but without a diagram I may be missing something.
You're right, I am not technically inclined with cars. With computers and most other small scale electronics, yes, but not cars. Everytime someone is mentioning these three letter acronyms, I have to look them up.... and that's the problem with the code reader I borrowed, it's all in acronyms and the manual isn't very good at telling me what they are.
I wouldn't be doing this, but I am trying to get a little more proficient with cars than I used to be as repair expenses continue to rise, plus the fact that I'm semi-retired and get less income, and the fact that this is inspection month for the darned thing.
If I can't solve this myself though by the middle of this month, it goes to my mechanic since inspection is due.
Sam
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 05 Jan 2015 06:23:42 -0500, Sam Seagate

Which engine do you have, the 3.0 pushrod or the 4 cammer?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 01/04/2015 10:16 PM, snipped-for-privacy@snyder.on.ca wrote:

Ok, I managed to install the software and download the data from the OBD scanner. I designated it to print ALL data obtained so far, so I printed it to a text file. It's fairly long, but I am including it here for anyone who might have some ideas:
Read Codes P0171 $10 Generic System Too Lean Bank 1 P0174 $10 Generic System Too Lean Bank 2
Live Data Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)8.6 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)14.8 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)396 Engine RPM(rpm) 694 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)28.0 Intake Air Temperature(¡£C)38 Air Flow Rate from Mass Air Flow(g/s)2.85 Absolute Throttle Position(%)18.8 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.075 Short Term Fuel Trim Bank 1-Sensor 1(%)11.7 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.075 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.375 Short Term Fuel Trim Bank 2-Sensor 1(%)13.3 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.085 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)10.2 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)14.8 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)396 Engine RPM(rpm) 708 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)27.0 Intake Air Temperature(¡£C)38 Air Flow Rate from Mass Air Flow(g/s)2.90 Absolute Throttle Position(%)19.2 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.265 Short Term Fuel Trim Bank 1-Sensor 1(%)10.9 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.095 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.550 Short Term Fuel Trim Bank 2-Sensor 1(%)9.4 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.090 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)13.3 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)14.1 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)396 Engine RPM(rpm) 682 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)28.0 Intake Air Temperature(¡£C)38 Air Flow Rate from Mass Air Flow(g/s)2.85 Absolute Throttle Position(%)18.8 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.580 Short Term Fuel Trim Bank 1-Sensor 1(%)8.6 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.095 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.710 Short Term Fuel Trim Bank 2-Sensor 1(%)10.2 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.090 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)11.7 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)12.5 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)399 Engine RPM(rpm) 720 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)27.5 Intake Air Temperature(¡£C)38 Air Flow Rate from Mass Air Flow(g/s)2.85 Absolute Throttle Position(%)18.8 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.590 Short Term Fuel Trim Bank 1-Sensor 1(%)9.4 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.085 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.370 Short Term Fuel Trim Bank 2-Sensor 1(%)11.7 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.070 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)10.9 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)10.2 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)396 Engine RPM(rpm) 698 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)27.5 Intake Air Temperature(¡£C)39 Air Flow Rate from Mass Air Flow(g/s)2.85 Absolute Throttle Position(%)19.2 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.435 Short Term Fuel Trim Bank 1-Sensor 1(%)10.2 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.065 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.125 Short Term Fuel Trim Bank 2-Sensor 1(%)14.1 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.070 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)8.6 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)10.9 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)402 Engine RPM(rpm) 706 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)27.0 Intake Air Temperature(¡£C)39 Air Flow Rate from Mass Air Flow(g/s)2.85 Absolute Throttle Position(%)18.8 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.245 Short Term Fuel Trim Bank 1-Sensor 1(%)12.5 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.075 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.585 Short Term Fuel Trim Bank 2-Sensor 1(%)8.6 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.095 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)8.6 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)13.3 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)399 Engine RPM(rpm) 701 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)27.0 Intake Air Temperature(¡£C)39 Air Flow Rate from Mass Air Flow(g/s)2.85 Absolute Throttle Position(%)18.8 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.060 Short Term Fuel Trim Bank 1-Sensor 1(%)12.5 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.055 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.740 Short Term Fuel Trim Bank 2-Sensor 1(%)10.2 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.085 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)14.1 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)12.5 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)396 Engine RPM(rpm) 699 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)26.0 Intake Air Temperature(¡£C)39 Air Flow Rate from Mass Air Flow(g/s)2.85 Absolute Throttle Position(%)19.2 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.640 Short Term Fuel Trim Bank 1-Sensor 1(%)9.4 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.095 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.600 Short Term Fuel Trim Bank 2-Sensor 1(%)10.9 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.075 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.6 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)11.7 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)9.4 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)399 Engine RPM(rpm) 687 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)28.5 Intake Air Temperature(¡£C)39 Air Flow Rate from Mass Air Flow(g/s)2.90 Absolute Throttle Position(%)19.2 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.630 Short Term Fuel Trim Bank 1-Sensor 1(%)9.4 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.075 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.085 Short Term Fuel Trim Bank 2-Sensor 1(%)12.5 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.065 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)7.8 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)9.4 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)396 Engine RPM(rpm) 708 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)28.0 Intake Air Temperature(¡£C)39 Air Flow Rate from Mass Air Flow(g/s)2.90 Absolute Throttle Position(%)18.8 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.430 Short Term Fuel Trim Bank 1-Sensor 1(%)12.5 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.060 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.165 Short Term Fuel Trim Bank 2-Sensor 1(%)11.7 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.095 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)7.8 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)9.4 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)393 Engine RPM(rpm) 688 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)29.0 Intake Air Temperature(¡£C)38 Air Flow Rate from Mass Air Flow(g/s)2.85 Absolute Throttle Position(%)19.2 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.075 Short Term Fuel Trim Bank 1-Sensor 1(%)11.7 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.050 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.415 Short Term Fuel Trim Bank 2-Sensor 1(%)7.8 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.095 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)27.8 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)10.2 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)11.7 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)393 Engine RPM(rpm) 707 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)27.0 Intake Air Temperature(¡£C)38 Air Flow Rate from Mass Air Flow(g/s)2.90 Absolute Throttle Position(%)18.8 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.605 Short Term Fuel Trim Bank 1-Sensor 1(%)7.8 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.100 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.765 Short Term Fuel Trim Bank 2-Sensor 1(%)9.4 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.085 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)10.2 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)7.8 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)390 Engine RPM(rpm) 699 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)27.0 Intake Air Temperature(¡£C)38 Air Flow Rate from Mass Air Flow(g/s)2.90 Absolute Throttle Position(%)18.8 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.700 Short Term Fuel Trim Bank 1-Sensor 1(%)8.6 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.090 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.145 Short Term Fuel Trim Bank 2-Sensor 1(%)11.7 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.070 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.6 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)7.0 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)8.6 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)390 Engine RPM(rpm) 701 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)27.0 Intake Air Temperature(¡£C)38 Air Flow Rate from Mass Air Flow(g/s)2.85 Absolute Throttle Position(%)18.8 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.245 Short Term Fuel Trim Bank 1-Sensor 1(%)11.7 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.070 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.090 Short Term Fuel Trim Bank 2-Sensor 1(%)11.7 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.075 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.2 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)7.0 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)8.6 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)396 Engine RPM(rpm) 692 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)29.0 Intake Air Temperature(¡£C)38 Air Flow Rate from Mass Air Flow(g/s)2.90 Absolute Throttle Position(%)18.8 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.435 Short Term Fuel Trim Bank 1-Sensor 1(%)7.8 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.080 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.490 Short Term Fuel Trim Bank 2-Sensor 1(%)6.3 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.100 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ---------------------- Number of DTCs stored in this ECU 2 Fuel system 1 statusCL Fuel System 2 status-- Calculated LOAD Value(%)28.6 Engine Coolant Temperature(¡£C)96 Short Term Fuel Trim -Bank 1(%)5.5 Long Term Fuel Trim - Bank 1(%)25.0 Short Term Fuel Trim -Bank 2(%)10.9 Long Term Fuel Trim - Bank 2(%)25.0 Fuel Rail Pressure(gauge)(kPa)396 Engine RPM(rpm) 705 Vehicle Speed Sensor(km/h)0 Ignition Timing Advanece for #1 Cylinder(¡£)28.0 Intake Air Temperature(¡£C)38 Air Flow Rate from Mass Air Flow(g/s)2.85 Absolute Throttle Position(%)19.2 Location of Oxygen SensorsB1S12--B2S12-- Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.050 Short Term Fuel Trim Bank 1-Sensor 1(%)10.2 Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.065 Short Term Fuel Trim Bank 1-Sensor 2(%)N/A Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.595 Short Term Fuel Trim Bank 2-Sensor 1(%)7.0 Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.095 Short Term Fuel Trim Bank 2-Sensor 2(%)99.2 OBD requirements to which vehicle is designedOBDII ----------------------
View Freeze Frame DTCFRZF() P0174 FUELSYS1() CL FUELSYS2() -- LOAD_PCT(%) 36.1 ECT(¡£C) 80 SHRTFT1(%) 20.3 LONGFT1(%) 25.0 SHRTFT2(%) 20.3 LONGFT2(%) 25.0 RPM(rpm) 684 VSS(km/h) 1
Modules Present ID: Protocol $10: SAE J1850 PWM
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 01/05/2015 08:14 AM, Sam Seagate wrote:

Ok, I removed the MAF and used MAF cleaner to clean it thoroughly. Once dried, I put it back on. Started and the lights still on. Next step is the premium gas once the current tank is about empty.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
After serious thinking Sam Seagate wrote :

You neglected to say if you reset the light after cleaning the MAF. Reset the code and then see if it comes back.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 01/05/2015 11:41 AM, Seth wrote:

Reset it tonight, but will complete the "drive cycle" tomorrow.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Mon, 05 Jan 2015 09:59:02 -0500, Sam Seagate

The light will NOT go out by itself. You need to cancel the code with the reader. That will put the light out. Then you need to complete a drive cycle. Google it - there is a procedure you can go through that will reset all of the monitors except the evap monitor in about 20 minutes of driving, or it may take several days of random driving to reset the monitors. The catalyst monitor needs to reset before the light can come back on - and the monitors all (or all but 1 - or possibly 2) need to be set before it will pass inspection.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 01/05/2015 01:40 PM, snipped-for-privacy@snyder.on.ca wrote:

Cancelled the code; tomorrow I will try out the drive cycle. Very interesting stuff, I must say. Never knew about "drive cycles".... always thought just fish and plants had cycles (chuckle).
So I guess I can assume now that, once the drive cycle is completed, the lights will stay off and the car should pass inspection? Not so sure from what you say above.
Sam
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

IF THE CAR CALLS FOR REGULAR, then do not bother with premium. If your car calls for mid grade or premium but you are using regular instead, then use the higher grade that is called for. Having said that, the grade of fuel is not something that will lead to a LEAN or RICH condition. You can still have the correct air/fuel ratio even if the grade of fuel is not correct.
You can buy a code scanner on eBay for under $20, then install an app on your phone or tablet for free, or the upgrade app for $5.00 -- putting you at less than $25 into a scanner that will give you more information about your car than you ever dreamed was available -- and this will let you pull codes and reset them.
The scan module that plugs into your car is called ELM327, and there are several makers. Some are bluetooth and some are WiFi. There are several apps that will communicate with the ELM327 module.
Among other things, the module will allow you to build a data base as you drive the car to work and home again, or wherever you want to go, and the data will allow you to plot a graph about what the O2 Sensors are actually doing. This will tell you if the data that the sensors report is in error or if there is a problem for you to address.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 01/04/2015 03:44 PM, Jeff Strickland wrote:

A friend let me borrow his Centech 60694 scan tool today. He wasn't around to help, but gave me the manual. Not the greatest help, but I did manage to hook it up and it shows the two codes mentioned prior. It gives options to freeze, print data, etc and has a USB port. It took me a while to figure out all the abbreviations, but I see several oxygen options along with graphing. If you or someone could advise as to where to go with this next, would appreciate. If I could figure out how to share the data, I will.
Thanks, Sam
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
wrote:

I am not familiar with this particular unit, but generally speaking you need the ELM327 + phone/device app to gather any significant data sets. Freeze Frame is useful, but consider a snap shot of your kid's soccer game or a video of it. Freeze Frame is a snap shot, the smart phone app will provide a video.
You are making this hugely more difficult than it needs to be. I put the odds that the oil change technician broke a hose at about 95%, and I'm being generous to the oil change guy -- he really has odds at about 99%.
Your car is giving codes that say the engine is LEAN. In the absence of any other information, the assumption must be that there is a vacuum leak. It is posssible that the trouble is more complex, but you MUST make sure that the simple stuff is not the cause.
Your car has 4 O2 sensors, two (one on each bank of cylinders) before CAT, and two (again, one on each bank) after the CAT. Your codes are saying that the sensors before the CATs are detecting too much air, or not enough fuel, in the exhaust stream.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 01/04/2015 07:22 PM, Jeff Strickland wrote:

I initially did a propane test around all the hoses I could see and the car didn't run any differently. Not sure what hoses or vacuum would be near the oil fill and/or filter, but may have to recheck. I don't have a vacuum diagram for the car and I couldn't find one googling.
Sam
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Sun, 04 Jan 2015 19:32:15 -0500, Sam Seagate

The propane check will not tell you much on an electronically controlled engine that is running well and has only a small vacuum leak. You need to physically check all of the connections first - the ends of the hoses - then if you have not found anything check for cracked hoses - any hose that has hardened is suspect and should be changed.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On 1/4/2015 6:32 PM, Sam Seagate wrote:

If you have the 4V duratec engine, as i recall, this engine had issues with a PVC or vacuum hose under the intake plenum that can cause air leaks when i cracks from aging.
bob
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Related Threads

    Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.