94 SSE has spark and fuel but will not start, please help

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Dec 16, 2005 | 11:08 AM

#11

SSEBONNE4EVA

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From: CT

start

If you have no injector pulse but have spark, the crank sensor is working. The ICM or PCM may be at fault or could have a bad connector.

Dec 16, 2005 | 12:07 PM

#12

willwren

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Re: start

Quote:

Originally Posted by SSEBONNE4EVA

If you have no injector pulse but have spark, the crank sensor is working. The ICM or PCM may be at fault or could have a bad connector.

Or the cam sensor. It provides a pulse for the injectors through the PCM.

Dec 16, 2005 | 12:17 PM

#13

banned3800

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The problem can still be in the crank sensor or ICM

There are 2 parts to the crank sensor, and if eithr one of them fails the car will be left with a no start condition...

One part of the crank sensor is for spark and the other is for the fuel pulse circuit... And the cam sensor is for a Cylinder #1 reference pluse so that the PCM will be able to run in true Sequintial Fuel Injection mode... Without that pulse, the car will start in run but will never enter SFI mode, and at times will run crappy...

I feel that it could possibly be the Crank sensor or the ICM...

Let us know what the problem was and what the fix is...

Remember, we all learn from these problems..

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Dec 16, 2005 | 12:44 PM

#14

SSE14U24ME

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Jeff talked to the shop and they sent a guy out to the junkyard to pick up some wiring harness' as they think this may be the cause. I will let you know something later today

Dec 16, 2005 | 06:07 PM

#15

SSE14U24ME

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NO GO on the wiring harness. the mechanic says it doesn't look good= translation- I better bend over and not expect a kiss afterwards.

I am so f'ing frustrated y'all can't even imagine!!!!

Dec 21, 2005 | 10:08 AM

#16

SSE14U24ME

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The car is STILL in the shop. The mechanics have NO idea but think it has something to do wth the theft deterrent. These mechanics are very good and are good to deal with BUT I am losing my mind cuz I want my car back.

The saga continues...

Dec 21, 2005 | 10:30 AM

#17

banned3800

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Did they by chance find any codes stored in the computer? Possible a theft deterent code?

Are they by chance getting any pulse from the PCM to the injectors?

I'm almost at a loss here..

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Dec 21, 2005 | 10:44 AM

#18

SSEBONNE4EVA

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From: CT

theft

wouldn't have spark and fuel if it was the theft deterent system.
did you check for injector pulse?

Dec 21, 2005 | 11:39 AM

#19

SSE14U24ME

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Quote:

Originally Posted by jr's3800

Did they by chance find any codes stored in the computer? Possible a theft deterent code?

Are they by chance getting any pulse from the PCM to the injectors?

I'm almost at a loss here..

Jeff said the only code it threw was QDM 1 (I think), the mechanic called me the other day and asked me what all we replaced. I told him we re-spliced the wires and replaced serpentine belt, crank shaft sensor, and computer. He then said he needed those parts (which were in the car) because they believe it has something to do with theft deterrent. Jeff talked to him later that day and told him that my key has that chip in it and I can pull out the key if the car is running and could that have anything to do with this mess. He didn't know. If it turns out to be an ignition problem- are they expensive to replace??

Dec 21, 2005 | 11:58 AM

#20

banned3800

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Not sure what the problem is...

The QDM#1 fault will not keep the car from running, but it will turn on the SES light...

The Theft Deterent system detects the key or resistance in the chip when you go to start the car, if it detects the proper current, it will turn on the fuel enable circuit, once the car is running the theft deterent system can fail, but the car will continue to run untill you shut it off... At which point it will not restart...

I still agree that they need to check and see if they are getting a fuel pulse at the injectors.

Another thought that just hit me...

Guys help me out here...

Haven't we seen the little wires in the steering collum break before?

And isn't there a bypass for the VATS?

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