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Discussion Starter #1 (Edited)
So I put some 104 unleaded fuel in the car finally, and got some good 15psi pulls in. While driving I felt something wierd vibrate thru the shifter, but the car felt fine. I pretty much ignored it and didnt drive in boost the rest of the way.

Anyway, when getting home the car developed a slight misfire and my idle is lumpy. Goes up and down 100-200 rpm, like I was stepping on the gas and letting off. Any Ideas? I dont hear that much misfire popping when the RPM's are going up and down.

This is also the first time I drove the car this hard.

Also, this morning I started the car, idled perfectly. Stepped on the gas a bit, and the rpm's started jumping up and down 100 rpm's. After a few minutes idle went back to normal. Gave it some more gas, same thing, maybe 1-1:30 min of wierd idle, then back to normal.
 

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Sounds like unmetered air is entering your engine. Maybe a hose popped off during your hard drive.
 

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Discussion Starter #9 (Edited)
No CEL's, just changed plugs and reset ecu, same thing. Intercooler piping seems ok, and my eyes couldnt catch any vac lines popped off. ill try and do a boost leak test this weekend. Thanks guys.
 

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No CEL's, just changed plugs and reset ecu, same thing. Intercooler piping seems ok, and my eyes couldnt catch any vac lines popped off. ill try and do a boost leak test this weekend. Thanks guys.
after a ecu reset, the ECU has to relearn so your ilde will adjust until ECU fully learns. Thats what happen when I reset my ECU. Also changing the plugs and depending if you gap them or not, you will get that slight misfire/lumpy.
 
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