Re: [DML] why does cold engine rev?

[Farrar Hudkins <fhudkins@xxxxxxxxx>]

Yes. That is the side effect of the oxygen sensor warming up. I have 
known some owners to replace the sensor with a heated one and this is no 
longer a "problem." (In quotes because it's not really a problem anyway 
-- mine stops revving when I put it in gear.)

Cheers,
Farrar Hudkins
#2613 (auto)

daviddelorean wrote:
> 
> 
> After a cold night or after not using the car for a few days, when I
> start the engine and let it warm up after a few minutes the car begins
> to rev on its own. It goes through cycles where it revs at slightly
> higher RPMs for a few minutes then it stops. Is this normal?


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