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· Registered
31 Posts
Discussion Starter · #1 ·

Question... it seems as of recent when I turn on my air sitting at a stop light my car idles real low and pings/knocks.. if I turn off the A/C the car idles normal and all seems good... I've done alot of cleaning and replaceing to make sure for good sound running just gotta tackle this little prob..

Any ideas?


Yeah ive got a similar prob with the a/c the revs drop at idle and i get a weird groan/whining sound that had me worried but im just putting it down to the operation of the a/c, can anyone prove me wrong cos im starting to worry about it again

· Not on fire... yet
787 Posts
check your MAF and TPS voltages and adjust(TPS) or reground(MAF).... that might help out a bit... sounds like the trigger isnt telling the car to rev higher when the A/c is turned on

93 NX2K
some stuff and a DET
"project street mod?"
1988 BMW M3 w/ a few toys
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