Need help - I've changed almost everything except the Opti...
Thread Starter
Racer
Joined: Sep 2009
Posts: 414
Likes: 0
From: Oxford CT
Need help - I've changed almost everything except the Opti...
UPDATE: It was the Opti. I finally got around to changing it out this weekend (along with a CSR electric water pump) and the car is running great.
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..and she still stalls when engine temps get to about 185-190. If you give it time to cool down it'll start right up until it hits temp again and then it's shutdown WITH NO CODES.
Here is what I have swapped out:
- ICM
- Ignition coil
- O2 sensors
- Fuel Pump
- Fuel filter
- TPS
I cleaned the IAC, I checked the FPR and there is no fuel leaking from the vacuum hose. Fuel pressure holds steady at 43psi on KOEO. I did not ohm out the injectors yet. I'm at the point to asking if there is anyone local that has equipment to data log it when it goes down. I can replicate this issue every time. The only thing I can think of is an Opti or ECM replacement.
I'm bummed out that I can't drive it. Looking for help C4 brethren!
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..and she still stalls when engine temps get to about 185-190. If you give it time to cool down it'll start right up until it hits temp again and then it's shutdown WITH NO CODES.
Here is what I have swapped out:
- ICM
- Ignition coil
- O2 sensors
- Fuel Pump
- Fuel filter
- TPS
I cleaned the IAC, I checked the FPR and there is no fuel leaking from the vacuum hose. Fuel pressure holds steady at 43psi on KOEO. I did not ohm out the injectors yet. I'm at the point to asking if there is anyone local that has equipment to data log it when it goes down. I can replicate this issue every time. The only thing I can think of is an Opti or ECM replacement.
I'm bummed out that I can't drive it. Looking for help C4 brethren!
Last edited by npbassman; Aug 27, 2012 at 10:41 AM.
Melting Slicks
Joined: Mar 2003
Posts: 2,512
Likes: 49
From: Franklin IN
..and she still stalls when engine temps get to about 185-190. If you give it time to cool down it'll start right up until it hits temp again and then it's shutdown WITH NO CODES.
Here is what I have swapped out:
- ICM
- Ignition coil
- O2 sensors
- Fuel Pump
- Fuel filter
- TPS
I cleaned the IAC, I checked the FPR and there is no fuel leaking from the vacuum hose. Fuel pressure holds steady at 43psi on KOEO. I did not ohm out the injectors yet. I'm at the point to asking if there is anyone local that has equipment to data log it when it goes down. I can replicate this issue every time. The only thing I can think of is an Opti or ECM replacement.
I'm bummed out that I can't drive it. Looking for help C4 brethren!
Here is what I have swapped out:
- ICM
- Ignition coil
- O2 sensors
- Fuel Pump
- Fuel filter
- TPS
I cleaned the IAC, I checked the FPR and there is no fuel leaking from the vacuum hose. Fuel pressure holds steady at 43psi on KOEO. I did not ohm out the injectors yet. I'm at the point to asking if there is anyone local that has equipment to data log it when it goes down. I can replicate this issue every time. The only thing I can think of is an Opti or ECM replacement.
I'm bummed out that I can't drive it. Looking for help C4 brethren!
Safety Car
Joined: Sep 2010
Posts: 3,752
Likes: 190
From: Indiana PA
After it stalls out and you crank but no start. So you have spark?
Spark checkers are like $5 at Harbor Freight might be a worth while investment? Would narrow it down a bit.
Do you have a healthy layer of Thermal Grease behind the ICM? My 93 starting having a similar issue last winter, it would run find cold, warm, but start to miss hot. If I shut it down, it would NOT restart until cooler. I applied new thermal grease behind the ICM as there was almost none!!! It have been trouble free since.
Spark checkers are like $5 at Harbor Freight might be a worth while investment? Would narrow it down a bit.
Do you have a healthy layer of Thermal Grease behind the ICM? My 93 starting having a similar issue last winter, it would run find cold, warm, but start to miss hot. If I shut it down, it would NOT restart until cooler. I applied new thermal grease behind the ICM as there was almost none!!! It have been trouble free since.
