MickeyV Posted February 9, 2009 Report Posted February 9, 2009 I'm looking for some advice with my 95 GTP, it's running a little rough and I thought some of the guys on here may have run into a similar problem before. Here is a video of the car running - Note - Just recently replaced the ICM/ Any help would be great -Mickey Quote
Q-Ball Posted February 9, 2009 Report Posted February 9, 2009 Hey there, first post and with trouble! Are the rpm's jumping when it pulses? Quote
spiderw31 Posted February 9, 2009 Report Posted February 9, 2009 Hmmm... Not really sure, but more thinking out loud here. Sounds like you have a massive exhaust leak under the hood there. I wonder if that could be screwing with the O2 sensor causing the mixture to be way off, and thereby causing the surging. Like I said, just thinking out loud. Quote
Artemis Posted February 9, 2009 Report Posted February 9, 2009 I dont think he has an exhaust leak, he's got loud mufflers! I know because I helped him install the new ICM. We couldn't figure out why it was pulsing. RPMs go up and down and it dies sometimes... even while DRIVING if you let up on the gas. Could it be the MAP sensor? Quote
Addicted To Boost Posted February 9, 2009 Report Posted February 9, 2009 What kind of plugs are you running? These ignition systems *hate* platinum plugs. Plain AC Delco plugs work best. Any trouble codes? Quote
Artemis Posted February 9, 2009 Report Posted February 9, 2009 no trouble codes. Mickey just bought the car... not sure what plugs they're running but I assume Delcos. Quote
Addicted To Boost Posted February 9, 2009 Report Posted February 9, 2009 Check em. A lot of people like to put Bosch Platinum plugs in, and they wonder why their car runs rough. My 91 had that issue when I bought it Quote
95 vert Posted February 10, 2009 Report Posted February 10, 2009 Man, thats a leak between the throttle body and mass air flow. Check the hose and make sure it hasn't "folded up" under the throttle body. Quote
spiderw31 Posted February 10, 2009 Report Posted February 10, 2009 I dont think he has an exhaust leak, he's got loud mufflers! I know because I helped him install the new ICM. From that video it really does sound like an exhaust leak or a plugged cat, but hearing in person > listening to a video, so I'll shut up about it Man, thats a leak between the throttle body and mass air flow. Check the hose and make sure it hasn't "folded up" under the throttle body. ^ That sounds very plausible! Quote
Artemis Posted February 10, 2009 Report Posted February 10, 2009 well, car isn't running at all now. Just had to help Mickey push it onto a sidestreet so it doesnt get towed. Pulled out a spark plug and the metal in the spark plug wire broke off and attached itself to the spark plug. Hopefully Mickey will take a picture of the actual spark plug we took out... probably the worst spark plug i've seen. Although they were AC Delcos, i'm thinking his problems are spark plug/wire related. Quote
Night Fury Posted February 11, 2009 Report Posted February 11, 2009 well, car isn't running at all now. Just had to help Mickey push it onto a sidestreet so it doesnt get towed. Pulled out a spark plug and the metal in the spark plug wire broke off and attached itself to the spark plug. Hopefully Mickey will take a picture of the actual spark plug we took out... probably the worst spark plug i've seen. Although they were AC Delcos, i'm thinking his problems are spark plug/wire related. Did that just a few weeks ago... Pliers FTW! Quote
dodgethis Posted February 11, 2009 Report Posted February 11, 2009 well, car isn't running at all now. Just had to help Mickey push it onto a sidestreet so it doesnt get towed. Pulled out a spark plug and the metal in the spark plug wire broke off and attached itself to the spark plug. Hopefully Mickey will take a picture of the actual spark plug we took out... probably the worst spark plug i've seen. Although they were AC Delcos, i'm thinking his problems are spark plug/wire related. Well its funny because when i replace the spark plugs in the lumina the old delcos had broke in half as well. The porcelain part with the metal rod inside just sheared off when i tried removing them. It scared the living shit out of me because i thought i couldn't get them off. Luckily the hex bold on it was still good for me to get it out with the socket. I through in the dreaded bosch's everyone hates. I haven't had any issues. BTW the car had 54,000 when i did the plugs. I still am using the original wires and will replace them when i do the plugs again soon at 85,000 miles. Quote
dodgethis Posted February 11, 2009 Report Posted February 11, 2009 Another note about the video, its weird how your lights will get brighter has the car revs up. I just thought that was funny. Quote
Night Fury Posted February 11, 2009 Report Posted February 11, 2009 Hah... My 6000's rpms would correspond to my blinkers when they were on LOL! Quote
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