P38 4.0 Tickover shooting up

Daniel · Jul 9, 2011

Ticks over fine when the auto box is in D and you've pulled up, but if you knock it into N at traffic lights for example it shoots up to 1500rpm and stays there.

I'm thinking idle control valve?

eightinavee · Jul 9, 2011

I'm thinking the engine ecu is seeing a larger value from the throttle position sensor than its stored idle value.Check the cable for free play,other than that its a session on Testbook to see whats going on.

P38 4.0 Tickover shooting up

Daniel

New Member

eightinavee

Well-Known Member

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