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Author Topic: Vectra A X20XEV 2.0 16v - question about "steps"  (Read 7334 times)

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Offline Pittsford2

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Vectra A X20XEV 2.0 16v - question about "steps"
« on: October 30, 2007, 15:35:10 »
I have been looking at the engine ECU parameters and I'm trying to figure out why two of the parameters are outside of the specifications.

#16 idle air control. Should be 40-53 but it's at 148 steps.
#18 IAC adaptation slope should be 118-138 but it's at 45.

Can anyone tell me what I should check please?


Offline Artur

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Re: Vectra A X20XEV 2.0 16v - question about "steps"
« Reply #1 on: October 31, 2007, 00:22:59 »
Welcome to our forum!

Are you having problems with Idle Speed?

The IAC valve can be dirty, and as a result - it can be stuck sometimes.