Was running fine during routine shopping. When my wife came out of store the engine would not crank. Fuel is no problem it has new fuel pump. I have replaced crank and cam sensors, also plugged in new ASD relay to no avail. Changed coil pack. When I check the firing at plugs it hits ONE HEAVY SPARK and NO MORE at each try. Only hit's again after ignition is turned off and then back on. Please respond with any suggestion.
You'll get one discharge like that just from the coil powering up and discharging, but it sounds like what they do when the ignition module is dead...
I forgot...I don't think the Dodge has an ignition module per se, but it may be the engine controller module under the hood. Check all connections and fuses and breakers...
not familiar with the relay you said, what does it do?
Starter or starter relay... Not cranking, means not turning...
Stop wasting money on all these parts and get the starter and starter relay tested... Should get you "crank[ing]" again...
I have checked every single fuse and every relay that I can find. The ASD relay from what I understand provides a grounding to both the ignition and fuel solenoids simultaneously once the ignition switch is turned on and drops the ground after 1.8 seconds.
That one is still OBD I...can you get codes with the key flip on/off routine like they used to do?
Spelling?? I guess you read about as well as you spell. Look in the subject line..
I wasn't sure - was there any advise to me concerning my dilemma?
goto dealer, ask them for the wiring diagram. try to locate all the sensors realted to the ignitiion system. Check all the connectors. Same books shows wehre the connectors are. Try to test all the sensors to be sure youhave working sensors. If you want you can bypass some relays.
Be sure you check all the fuses. Especailly ECM one.
PS: you c> I wasn't sure - was there any advise to me concerning my dilemma?
Thanks for the advice I have checked all fuses and relays twice!
I have done just as you suggest - there is truly no fuel problem. Thanks again
Thanks for your input - sounds more knowledgable than most.
Lack of spark is not something you need a lot of expertise to diagnose...he's already changed the cam and crank position sensors, so the triggering end of the system is good, that leaves the ignition feed and the computer that makes the big decisions...based on there being a power up and discharge happening when the key is turned on, there is adequate power supply to the coil...they is simply no signal coming to tell it when to discharge...
I'm liking the PCM for this also...like I said in the first place, it's very typical of an ignition module failure (on cars that use them)...but in your case I think it's incorporated into the the PCM.
No other sensors are going to be invoilved, regardless of the ramblings of some who have responded...module, trigger, coil and power...that's still all you need for spark...very basic, no different than cars have ever been, just computer module switched instead of mechanical (points)....
Do they even DO smog checks in NC? I mean, real ones?
The spark is not going to be there as long as you crank the engine. The ASD relay shuts down fuel and spark after 3 seconds of cranking. You say there is good pressure, what was the pressure reading?
Glenn
If there was any doubt that fuel was an issue, a quick shot of starting fluid would answer that one...glad to hear more about that ASD relay though...this must be Dodge stuff, I'm GM oriented...Chrysler's stuff never did make much sense to me...seems they can over-trashify an electrical system with more worthless crap than anyone else, just to acheive the same result...
Don't flame me...I'm joking...kinda...
Actually I've tried starting fluid also on three or four dfifferent occasions. Have to get back to you on the pressure reading. I didn't put a gauge on it (but I will in the morning) I just released the valve while it was cranking.
"DeserTBoB" wrote
Yes, they have been doing them in the largest cities for a few years, and have been adding more counties, especially the ones that are growing, or have industries that help to contribute to smog.
I don't know about the rules for the largest cities, but in my county, it applies to '96 and newer models.
They also add oxygenators to the gas in the largest cities, in selected months.
"DeserTBoB" wrote
The check engine light never indicated any shot items, but, oh well!
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