Whats wrong? Help.
I have a DD 98 M6 TA with 125k miles and replaced my power steerting pump, alternator and belt. Now the damn things seems to surge for an unknown reason.
When i let the car coast in netrual the rpms read 2k. As i come to a stop and about 3 seconds later the car idles around 1600. At times, it drops down even lower around 1100 rpms. I also found that when i turn on the a/c or heater the rpms increase to around 2100 at a dead stop.
Im confused as to why it may be doing that. Could it be the belt? BTW, its been a week and a half and nothing seems to be going back to normal.
I hope im in the right section and you guys can help me out here.
thanks
EDIT: Car is stock with the exception of LT's.
I don't see how the belt could be an issue if you replaced it with the exact same thing...
Perhaps you accidently pulled a vacuum line loose during the install? I'd go back and check those over to be sure...
Then check all your sensor connections.

