Puzzling idle

**aimhigh86** · 08-30-2010

Hey guys!

My GP has progressively been idling rougher and rougher. I have replaced the TPS sensor but that wasn't the problem I guess. Secondly, whenever I disconnect the MAF the car will idle beautiful and then die so naturally I tried a new MAF sensor. The new MAF did'nt fix a thing and same thing happens when I disconnect it, the car will idle nice and smooth and then die. What do you think the problem could be? Could the fueling tables in the PCM become corrupt? I want to try a new PCM but that is another expense so I wanted to see what you guys think. I also tried disconnecting the battery to re-set the PCM but that did not help either. The car will shut-off when I have been on the highway for an extended period of time while I'm forced to decelerate quite hard.

MOds: ZZP PCM, 3.25, headers, 1.9 rockers, intake, exhaust, fuel-rewire etc.......

**GAFF** · 08-30-2010

vac leak caused my car to do that

**TheOtherNick** · 08-30-2010

You could have gotten a bad new maf.

**Sandman** · 08-30-2010

When your car shuts down do the ABS and RPM die?

**aimhigh86** · 08-30-2010

Everything dies, all the dash lights lite up like a christmas tree. I trip codes for the MAF, TPS, and multiple misfires when it shuts off after a highway trip. Otherwise, the car does not shut off in normal city driving