my car is a P.O.S!

[Lt1_8U]

i put the new regulator in and injectors that are good and the car still has the same problem. when the car is hot and i shut it offf it will not start! Does anyone have any ideas?? my pump works, the car starts right up when its cold, it takes awhile to crank when its hot and i need to give it gas but it starts after awhile

i am sick of this car:evil:

[NJSPEEDER]

Does it crank slow or surge on the starter? Or is it just not catching?

[Lt1_8U]

Does it crank slow or surge on the starter? Or is it just not catching?

it cranks fast and it sounds like it does when its cold starting it. it just doesnt start unless i give it gas, i have to keep it floored

[JL8Jeff]

What have you tried so far to diagnose the problem? Have you tried swapping out the coil and/or ignition control module or shimming it away from the head/bracket with washers to try and keep it cooler? Have you swapped out the MAF with another one that works fine? It would seem to be either a spark or fuel problem and heat could soak into the ICM, coil, overpressurize the fuel system. Maybe the IAT sensor is giving bad readings.

[Lt1_8U]

the only thing i have tries is swapping the MAF and getting new injectors and a new fuel pressure regulator. i will try those things you said, i just need someone to swap with lol

[emolineaux]

hey i have a stock coil and ignition module off my 93 that you can have

[JL8Jeff]

I think the 96-97 coils and ICM are different from 93-95. I might have a spare 96 ICM and coil sitting around from my old 96 SS. They worked fine but I swapped them out trying to eliminate a P0300 code.

[deadtrend1]

I think the 96-97 coils and ICM are different from 93-95. I might have a spare 96 ICM and coil sitting around from my old 96 SS. They worked fine but I swapped them out trying to eliminate a P0300 code.

correct. 96-97's are single connector coils.

I would replace the ICM and space it away from the head with some washers to help it keep from heating up....

[JL8Jeff]

I do have a 96 coil sitting around but I had to remove the mounting piece to put the MSD coil on the car. I'll look for the ICM as well.

[LTb1ow]

Are you throwing any codes?

[emolineaux]

yea i wasnt sure if they would work on the 96 i was having a problem with my car backfireing while driving. so i put a new coil and icm on that didnt solve my problem so i think it might of been the cheap jegs opti that i installed a few months before. but who knows its not mine anymore.

[Lt1_8U]

jeff if you could do that for me that would be great. I am throwing lean bank one lean bank 2 and random misfire. i think part of that is bad 02's. i just need to get paid again so i can buy the 02's hah.

[JL8Jeff]

Being lean can also lead to the random misfire code. Almost seems like you might have a vacuum leak somewhere. Lean can also lead to converter failure from too hot of an exhaust. Search Ebay for some AC Delco O2 sensors or just swap your rear O2's to the front. The rear O2's only check to show if the convertor are working properly. But be careful trying to remove the O2 sensors, if they are rusted in place and you have to hit them with a wrench to break them loose, they can be damaged. I would just get new O2 sensors for the front. Check your intake elbow for any possible tears or leaks, also check the pcv hose and the brake booster hose. The last possible place is the EVAP hose and solenoid that pull in the gas tank vapors. I swapped all that stuff out on my old 96 SS and the code still came back 3-5 months later. 96's are known for the P0300 problem when there really isn't anything wrong. I'll look for the ICM but you can try the coil if you want.

[Lt1_8U]

Being lean can also lead to the random misfire code. Almost seems like you might have a vacuum leak somewhere. Lean can also lead to converter failure from too hot of an exhaust. Search Ebay for some AC Delco O2 sensors or just swap your rear O2's to the front. The rear O2's only check to show if the convertor are working properly. But be careful trying to remove the O2 sensors, if they are rusted in place and you have to hit them with a wrench to break them loose, they can be damaged. I would just get new O2 sensors for the front. Check your intake elbow for any possible tears or leaks, also check the pcv hose and the brake booster hose. The last possible place is the EVAP hose and solenoid that pull in the gas tank vapors. I swapped all that stuff out on my old 96 SS and the code still came back 3-5 months later. 96's are known for the P0300 problem when there really isn't anything wrong. I'll look for the ICM but you can try the coil if you want.


yeah i will just buy new o2's, i also believe there might be a leak because some of my rubber hoses seem cracked and i noticed when i drive it the rpm's stay up around 2 k when im coastin, even in a high gear. and also when i rev the car the rpms go really low to almost like 500 and then i have to give it gas or it will stall. So i want to go buy new hoses for eveything on the top end of my engine and new 02s.

[LTb1ow]

Yea but if its not 02s, then you will ruin the new ones unless you figure out why its running weird...

I thought random misfire was a CPS failure?

[Lt1_8U]

Yea but if its not 02s, then you will ruin the new ones unless you figure out why its running weird...

I thought random misfire was a CPS failure?

yeah i know, i was going to wait to install the 02's, im trying to get it to run right and then put new plugs, new wires and the 02's.

yes random misfire can be caused from a CPS failure on the 96, i just want to get my car to shut off when hot and start back up then i want to install everything to get rid of the codes.

[JL8Jeff]

Yea but if its not 02s, then you will ruin the new ones unless you figure out why its running weird...

I thought random misfire was a CPS failure?

Not necessarily, I replaced that as well and still got the P0300. Remember, the P0300 can start as a specific cylinder and then after multiple misfires on that cylinder will change to P0300. I actually saw the specific cylinder pop up one time before changing to P0300 so I swapped plugs and injectors with another cylinder and still had the problem. When my SES light would flash because it was happening, the car was running perfectly. So I think the 96 cars have an oversensitive computer. I think it reads a slightly lean condition and translates it into multiple misfire. Your car not starting when hot may not have anything to do with the misfires but a vacuum leak could through it off enough to mess up the mixture.

[LTb1ow]

95 FTW. lol

I guess if its only doing it when hot, it would point to the ICM. Any chance you could brrw someones?

[Lt1_8U]

i'm going to ask around and see. i spaced the coil with washers and i still have the same problem. If anyone has one they want to let me swap to see if it works or if someone has one laying around i could try that would be great.

i was just looking online and i saw somewhere that the ICM can be tested to see if it is shot, any idea where i could go to have it checked out?

[JL8Jeff]

Have you checked your intake elbow for rips or tears and the pcv hose and brake booster hose to look for leaks yet? Those are easy things to do without spending any money.

[LTb1ow]

You can test em at Autozone I think, but the problem is only when it gets hot so it may test fine when its cool and off the car....

[Lt1_8U]

Have you checked your intake elbow for rips or tears and the pcv hose and brake booster hose to look for leaks yet? Those are easy things to do without spending any money.
i do see some slight tears in my hoses, so i am going tomorrow to replace them. actually there is a good amount just from being old. also i think it may be my ICM because my car overheated and i had that big problem whiche ended up being a radiator and a bad hose. after that the car had this problem. i will def get new hoses from the local parts store and try them out before i spend money on an ICM


You can test em at Autozone I think, but the problem is only when it gets hot so it may test fine when its cool and off the car....

oh yeah thats true. I will have to swap with someone