My 95 has been starting very rough recently.
It happens mainly on days that are above 50 degrees and ONLY
when the car is warm. After it starts, it stumbles at around 300 RPM and then stallls. If I give it about 25 - 50% throttle it eventually revs up and runs clean after 5 - 8 seconds then runs perfectly fine.
Ive been going nuts trying to figure out what it is.
I've changed the plugs and wires, and cleaned the coil contacts and the ignition module (there was some corrosion).
Well I found this on the web today (a generic auto review site) that said the following:Engine misfire:
The idle may be rough when restarting a warm engine (supercharged) and is fixed by replacing the fuel-pressure regulator and computer MEM-CAL. (1995)
I had a mechanic replace the fuel pressure regulator about 3 months ago and the car ran great. the engine control module (under the hood) was replaced by a previous owner.
I have 2 questions:
1 - should I look at the FPR again or look at replacing the computer?
2 - referring to the "computer" do they mean the one under the glove box?
here is a link to the page... has some interesting info that I'm sure many of you already know... thought Id share>http://consumerguideauto.howstuffworks.com/1995-to-1999-buick-riviera-2.htm
thanks for the help and sorry for being such a pain in the ass. gotta drive the old girl across the country in 6 days and want to be sure she's going to be OK.