Well I have had this 95 SC2 from the dealer, I have 235000 miles on it and just recently I have had to start replacing things. I have started to get a periodic miss. I’ll be driving along and one of the cylinders will drop out if I stop at a light or stop sign the car will stall and the only way I can restart it is to push the gas petal to the floor and it sometimes restart. When it does the cylinder is still out but it comes back. And I am going through fuel like mad. The computer fault codes do not indicate any problem. I have replaced the Coils, the Injectors, the spark plugs, and wires, nothing has changed this. Anyone have any ideas??

 

Any wierd smoke coming out the tailpipe? Does it burn through a lot of oil or coolant? Or what if there's problems with the valves seatingfor that cylinder?

 

I had a problem wiht the heads but had then Shaved. the compression is About 200 psi in all cylinders. burn about a quart of oil after about 2000 miles, after an oil change

 

Sounds like classic EGR issue with these cars.

It may feel like a misfire, but it is more likely that the EGR is sticking open when it should be closing (during deceleration) -- the EGR gets gunked up on these cars do to the massive oil burning....

Remove and clean/replace EGR valve. Also check EGR solenoid (though if you're not getting an EGR code or a quad driver output code the solenoid is probably OK)

Also -- if you've never replaced the original engine coolant temp sensor (ECTS), it most certainly has failed (poor design) and is causing car to run absurdly rich-

Replace with brass-tipped sensor and OEM replacement connector -- connector is crucial to proper signal transfer to PCM (see other ECTS posts on this site).

Keep us posted

Derf

 

The egr valve helped and I cleaned all the contact points for the coils, it is running allot better but still stalls at lights. Last night I replaced the EGR valve the O2 sensor, and today I will replace the coolant temp sensor. I hope that is the last part that I need. I think that I am still using gas but I want to drive it more to be sure. Any one know how long it takes the computer to reset after replacing all this stuff

 

I finally replaced the engine coolant temp sensor. It runs like it did when it was new... I can't believe that a $12 part was the problem that made it run that bad. After replacing about $350 worth of parts.

Thank you for all of your help.

 

ya gotta love happy endings[img]smileys/smiley1.gif[/img]