Odd idling problem
#1
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I had this problem before but it went away a bit after an oil change and oil filter change. I have a manual so i shift into neutral to coast. But the tachometer only drops down to 1500 or sometimes up to 2500 rpms instead of it's normal 500. I've been told before it was probably the throttle body. I took that off and scoured it clean until it looked brand new. It stopped for a while but now it's back. Any ideas?
#3
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Go to autozone, advance, napa, o'reilly, etc. and have them do a quick OBD-II readout. Write down any codes listed if there are any.
It sounds to me like you may need one or two new sensors (both on the throttle body), the IAC (intake air control) and/or TPS (throttle position sensor). That, or you have a leak in one or more of your vacuum lines. I would give all of them a good check too - especially the ones coming from the charcoal canister.
It sounds to me like you may need one or two new sensors (both on the throttle body), the IAC (intake air control) and/or TPS (throttle position sensor). That, or you have a leak in one or more of your vacuum lines. I would give all of them a good check too - especially the ones coming from the charcoal canister.
#5