Car won't start...just died after low fuel light came on...

Hi Nobody,

I am having a similar problem with my daughters 93 galant, heres the deal... had problems starting cold initially, would need to leave key in on position for 1-5 minutes and then it would start right up. In other words when cold the car would crank but not turn over right away... Thought it might be fuel pump and since pretty much all the fuel pump replacement sites say to try the regulator first thats what I tried.. unfortunately the Advance Auto computer is screwed and keeps listing the wrong part... anyway put the original one back on thinking she could drive it until i find the right part...wrong now it will crank but won't turn over. I checked for fuel and I do have a steady stream going in while the car is being cranked, not shooting accross the room like some other sites report but I am assume more than enough to start that car... anyway moved on to checking spark, no spark to any of the plugs.... How can I test my cam sensor? Can I fool it into thinking that it has a signal so i can at least see if this blasted thing will ever turn over again? I have a haynes manual but it about as bad as the so called techs at my local advance store. Also thought it might be my ignition coil but since thats a part of the distributor too on this car I guess it could be either??? I am assuming the left side electrical connection on the dist plugs into the cam position sensor, like I said my haynes book isn't very good...

Thanks in advance

shaun

Nobody U. Know wrote:

No spark could be from the coil or it could be from the ECU. If the ECU doesn't have the signals it needs to start the car, it wont.

Now that I have some more info, I can guess better. The regulator keeps pressure in the rail. Since the car had hard starting, the assumption (1st guess) is that pressure is bleeding off the rail causing the hard start. All you did was take it off and put it back on, so I'm still betting the ECU is cutting the spark for a sensor.

Check all the connectors around the area of the regulator and make sure you have them all hooked up. If that's OK, I think you can test it on the car. I'm not sure if the procedure is correct, but you should be able to tap a multimeter into one of the four wires coming out of the sensor (trail and error) and look for a signal when the switch is on and maybe while cranking. One of those wires will have a 5 volt, pulsed signal (sync'd to RPM) that goes to the ECU. One will probably have a 5volt constant signal from the ECU and the other two will be 12V power and ground.

Someone here may have a better way to test the sensor. I'm just guessing the above will work (someone with a manual please confirm).

I have the "Chilton's" manual for 93 Eclipse/Talon, 2.0L, turbo, MT Shows the Crankshaft sensor and the Camshaft sensor. I don't see a third (TDC)sensor.

Pin 1, white wire, is the output of the camshaft sensor, 5 volts or ground (pulse), as the engine cranks over. Pin 2,black wire, is the output of the crankshaft sensor, 5 volts or ground (pulse), as the engine cranks over. Pin 3, red wire, is a 12 volt feed from the MFI control relay (should be battery voltage when ignition switch is in "run" postion). Pin 4, black wire, is ground

There should be no constant 5 volts when the engine is cranking. 5 volts may be detected on pins 1 and 2, because the ECU provides a pull up voltage to the sensor, The sensor provides a ground at the correct signal point from the cam or crank, pulling the 5 volts down to zero, thus giving the ECU a pulse train. Without pulses on these two sensors, the ECU will not fire the SP, as it has not idea were TDC is.

"Nobody" is correct, you should be able to measure these signals with a voltmeter, I prefer an analogue type, as it has better averaging qualities when measuring pulse trains. The voltage measured will be less than 5 volts as the meter will average the voltages. If you monitor these voltages as the engine cranks very slowly then the voltage will fluctuate closer to 5 volts. I'm talking about pins 1 and 2 here. Check the 12 volt and ground pins first, if you don't have 12 volts, then check your fuses.

Good luck

Is that Ottawa, Canada, or Ottawa, California? If the former, I'm just across the river in deepest darkest West Quebec ...

Stewart DIBBS

That's the one. The early DSMs and 3Ks had one sensor for cam and crank. The

2G DSM and 93+ 3k had a cam and crank sensor. The 1G Galant was a 4g63, but they had a turbo, non-turbo, and SOHC one. I think the later Galant and 3G Eclipse had a 6g72 DOHC (non-turbo), essentially the same engine as a Diamante and NT 3K. They were all slightly different, but the technology was very similar. The 6G72T and 4G63T were the stronger of the series having oil squirters on the bottom end and beefer cranks/cams/internals.

He's in Canada, Stewart.

================================================= === VisualRoute report on 1/10/2005 11:14:34 === =================================================

Report for 192.150.5.150

Analysis: Node '192.150.5.150' was found in 14 hops (TTL=241). Connections to HTTP port 80 are working.

----------------------------------------------------------------------------------------------------------------------------------------------------------------- | Hop | % Loss | IP Address | Node Name | Location | Timezone | ms | Graph | Network |

----------------------------------------------------------------------------------------------------------------------------------------------------------------- | 0 | | 192.168.1.100 | hal-9000.hsd1.mi.comcast.net. | ... | | | | (private use) | | 1 | 100 | | | | | | | | | 2 | | 68.87.184.97 | ge-2-1-ur03.waterford.mi.michigan.comcast.net | | | 19 | -x--- | 68.87.184.0 | | 3 | 20 | 68.87.190.78 | te-8-1-ur02.flint.mi.michigan.comcast.net | Flint, MI, USA | | 9 | x-- | 68.87.190.0 | | 4 | 10 | 68.87.190.82 | te-9-2-ur03.flint.mi.michigan.comcast.net | Flint, MI, USA | | 10 | x | 68.87.190.0 | | 5 | 10 | 68.87.190.86 | te-7-3-ar02.pontiac.mi.michigan.comcast.net | Pontiac, MI, USA | | 10 | x | 68.87.190.0 | | 6 | | 68.87.191.169 | pos-6-2-ar01.pontiac.mi.michigan.comcast.net | Pontiac, MI, USA | | 10 | x | 68.87.191.0 | | 7 | 20 | 12.118.104.49 | - | | | 16 | x- | 12.118.104.0 | | 8 | 20 | 12.123.6.62 | tbr2-p011801.cgcil.ip.att.net | Chicago, IL, USA | -6.0 | 18 | x | 12.123.6.0 | | 9 | 10 | 12.123.5.221 | gar2-p370.cgcil.ip.att.net | Chicago, IL, USA | -6.0 | 17 | x-- | 12.123.5.0 | | 10 | 20 | 12.125.142.6 | pos9-0.gwy2-tor.bb.attcanada.ca | | | 27 | x- | 12.125.142.0 | | 11 | 10 | 199.212.172.2 | pos5-0-0.hcap1-ott.bb.allstream.net.172.212.199.in-addr.arpa | | | 46 | x | 199.212.172.0 | | 12 | | 216.191.225.122 | - | | | 46 | x- | 216.191.225.0 | | 13 | | 66.46.210.194 | - | | | 49 | x--- | 66.46.210.0 | | 14 | | 192.150.5.150 | - | | | 48 | x | 192.150.5.0 |

----------------------------------------------------------------------------------------------------------------------------------------------------------------- VisualRoute Report for 192.150.5.150 produced at 11:14 on 1 October 2005. Roundtrip time to 192.150.5.150 (192.150.5.150) average = 48ms min = 48ms max = 51ms

"Stewart DIBBS" wrote in message news: snipped-for-privacy@magma.ca...