Computer codes for 94 Pontiac Bonneville

I just put a new ignition wheel into my 94 B-ville. The car will start for alittle bit then shut off. I try to start it again and car won't turn over at all. Plus there's weak to no gas pressure! I think i might have to reset the computer in the car. Help!

Have you used a fuel pressure tester to verify the weak to no gas pressure? Normal operating fuel pressure should be between 40 to 47 PSI. If you're not getting this kind of pressure then I'd suspect a failing fuel pump. If so, resetting the ECM won't help you

What's an ignition wheel?

I really need the ECM codes. The car start up, and get gas, then idle up real high, then shut down. My mechanic says the timing might be off, and the computer need resetting. He need the ECM codes. He tried to goto libraries, buy books, but noone seem to want to give up codes. What r the codes sacred or something? Help!

LOL. No, they're not sacred but I would think a mechanic would have them in a service manual. I don't think I fully understand what you are looking for but in order to "reset" the ECM and clear the history codes, all you need to do is disconnect the battery for 15 minutes or so. If the ECM still sees a problem, the SES or check engine light is going to come back on.

Someone with a scantool can read the error codes from the ECM as a way of narrowing down the cause of a particular problem. For example, if the scantool read a code of P0507, this will tell you that the ECM is seeing a high RPM in the idle control system. It won't tell you to repair or replace a specific part though. That's where the mechanic comes in.

The mechanic is a street worker. He does side jobs. Mostly hobby work. That's wht I'm asking for codes cause he changed a part that was bad and making noise, but the car was running fine. He said the rubber was coming off this small wheel. Once he put the new one on. The car will start up, then idle up real hard, then cut off. He said trhe timing might be off and the might need to be reset.

There's no manual adjustment for timing on the 3800s. It's all controled by the ECM. Again, to reset and clear history codes you need only to disconnect the battery for 15 minutes.

The noise and mention of rubber and wheel lead me to believe that he changed the harmonic balancer. There is a crank position sensor right in that neighborhood. have him double check the wire connectors to the sensor at least.

Thanks for the info randman1. We did all the stuff you said. We used theree wheels and the result is still the same. My mechanic wanted to know what do you about TDC( Top, Down, Center ). He said that might be the reason why the car comes on, idle up high, then shut down. After that, if you try to restart the car, it'll crank, but won't turn over! You have to wait a few minutes for it to cool down or something. Any ideas on what's happening?!

First off, it doesn't sound like he is a mechanic at all. Street worker, or street walker? Do yourself a favor and go get a real mechanic. Like another poster asked what is a ignition wheel? I'm sorry about this also, but where did you learn to spell? If you want the codes go by a chiltons manual at a local parts store.

Good luck,
Sellncars

The mechanic is a street worker. He does side jobs. Mostly hobby work. That's wht I'm asking for codes cause he changed a part that was bad and making noise, but the car was running fine. He said the rubber was coming off this small wheel. Once he put the new one on. The car will start up, then idle up real hard, then cut off. He said trhe timing might be off and the might need to be reset.

Thanks for the info randman1. We did all the stuff you said. We used theree wheels and the result is still the same. My mechanic wanted to know what do you about TDC( Top, Down, Center ). He said that might be the reason why the car comes on, idle up high, then shut down. After that, if you try to restart the car, it'll crank, but won't turn over! You have to wait a few minutes for it to cool down or something. Any ideas on what's happening?!

TDC means Top Dead Center and refers to the position of the crank shaft. It is when the #1 piston is at it's highest point and is a reference for timing. Since the 3800s have all computer controlled timing, you wouldn't need to deal with this unless you were changing a timing chain, cam or other internal part. If your timing chain jumped a tooth, which is unlikely, I doubt wour car would run as described. I would expect it to be difficult to start and idle poorly.

At this point, I would take your car to Autozone, Advance auto or other place that is willing and able to read the PCM codes for no charge and start there. The Service Engine Soon light is trying to tell you something. Listen to it so you can find out what the problem is.

Thanks again for the info! One day I hope i can return the favor. Who the (bleep) is sellncars?! Their not posting any info or asking questions, need to post somewhere else!!!

Hello,
I' am sellncars. I have been reading this forum for some time now. I read your post and made very little sense out of it. It sounded to me that you have a hack working on your car. I told you to find a new mechanic, meaning that the guy that you have now is NOT one at all. If he cant check for codes find someone that can. Your angry at me because your spelling was terrible? There was no information to give besides what i gave. I will post here if that's what i want to do. I don't mind trying to help those that want help. If your car is broken, take it to a real mechanic that works on cars everyday or at least someone that knows something about them. I've been in the auto business for over 20 years, all aspects of the field. That's who the ( BLEEP ) I' am!!

Good luck,
Sellncars

Thanks again for the info! One day I hope i can return the favor. Who the (bleep) is sellncars?! Their not posting any info or asking questions, need to post somewhere else!!!

No i'm not angry. I'm just saying it's a shame that someone found this site to be a clown and not talk about the subject which is 94 PONTIAC BONNEVILLE problems, not Eng 101 or Cirque De Sole

This will be the last reply to this thread. The only clown is your so called " Mechanic ". This mechanic doesn't know how to check for codes? He doesnt know that this car is all run by computer? I don't know everything about cars, what i don't know I'm not afraid to ask questions about. So for yourself, asking questions is a good thing. I will never take that away, there are alot of very smart people out there. The one important thing is terminology. The subject that you were spouting off about has been answered. Find a new mechanic!!! An education is a terrible thing to waste.

Good luck,
SellncarsNo i'm not angry. I'm just saying it's a shame that someone found this site to be a clown and not talk about the subject which is 94 PONTIAC BONNEVILLE problems, not Eng 101 or Cirque De Sole