Yesterday I was blasting around town, mostly highway pulls after work, doing some errands. On my way home the car started acting up like the throttle position sensor was screwed or a MAJOR vacuum leak. I was watching the timing jump from -25 to -38 to 8 and then sooth out, only to do it again minutes later. Idle speeds were really high and it would start surging. It has done it before and I had to turn the car off and it would be ok for a bit, then Disconnecting the battery would reset everything and clear things up. Not this time. I got the P0507 code (high idle speed) , imagine that. The s/c is making a sqealing noise and lower idle speeds and then it just jump up to 2500rpms and surges. I had to drive the wifes van into work this morning and will start tearing into engine when I get home. Cheers for the long weekend.
I am really curious about the supercharger making noise, like a bearing is going out, but inside. Anyone have any heat wrap I can use for the intercooler while I have it apart, lol. I guess I will pull the intakes and charger and see if there is any evidence of malfunction. I am just hoping that a valve is not stuck or something. Opinions or advice would be helpfull.