So my car recently devoloped a strange new issue. It drives mostly normal till you try to bring it about 2500-3000 rpms then the motor starts to cut out and jerk like its hitting rev limiter is the best way i can describe it. It just fallls on its face. I have a wideband installed and it ready 9:1 when it starts messing up. It only dose it when its warm too. Drives completly normal till the coolant hits about 160. It has 2 new check engine lights. one is for the throttle position sensor low voltage and the other is a random cyl missifre. I hooked it up to a solus pro and drove it with the misfire counter up and it dosnt missfire at all when it starts to cut out so i dont evenm know where the second code comes from. Also i watched the knock when the motor starts to cut out because i thought if it saw knock it might throw fuel at it and cut the timing but no knock either. Havnt pulled plugs yet, really only looked at it for ten mintues so far, but im gonna take a good look at it when i have my next day off work. right now its just sitting in the parking lot at my work because i dont want to drive it because im afaird of fouling out my brank new NGK's. It just started doing this ramdonly one morning, really gay just kinda looking for ideas at this point wondering if anyones ever run into the same problem. As of right now my plans are to check the voltage and precentage sweep of the TP Sensor make sure its smooth and dosnt drop off. check the 5v refrance at the tp, i also been thinking of some other ideas. Could a bad map sensor cause this because i installed a used one from a cobalt when i supercharged. Also im thinking about using this opertunity and replacing my head gasket because that was like the only thing i didnt replace when i pulled the motor because im a retard. The only reason i want to do this is because ive been running into milky oil since i supercharged it. not sure why i just thought from the extra air/. moisture getting forced into the motor maybe milked it up a lil. but it could be worse who knows. I did a compression test and cyl leakdown like a few weeks ago and the results were great! all cyl had 200-210 psi compression and none leaked more than 5%. Is anyone esle supercharged running into milky oil? Also do you have to remove the cams to pull the head on a ECO. im just trying to gauge what im getting my self into here. So plans for now are new TP sensor, new cometic head gasket, arp stuts, and im gonna take it from there. C&C Appriciated!



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