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Engine revving up and down in Park when Airconditioning is on. VZ 190KW.

Twisted77

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Hey All

I have an issue that even a Holden Dealer can't figure out.

When I have my VZ in Park with the Aircon on it revs up and down then idles then does it again over and over.

Any Ideas?:confused:
 

Hrd455

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Its probally a sensor, did it throw any fault codes
 

Ian Johnston

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How high are the revs going?? Sounds normal to me.
 

Twisted77

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No fault codes at all which is the problem.
 

Twisted77

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the revs are going upto about 1500 revs then back down
 

FATMOE

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IAC, and its not normal for whoever thinks it is.
 

andyman

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IAC, and its not normal for whoever thinks it is.

that would be a good solution if alloytecs use one....

as said, will be an electrical issue, does the revs cycle with the the a/c compressor cutting in and out?
 

Ian Johnston

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The revs should cycle with the AC on, but probably not as high as his is doing, thats why I asked how high they were going.
 

Twisted77

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Hi there

I have just notoced that it doesnt nomatter the gear, D, N, R,P but is more noticeable when AC is on and in Park. When in Drive the car revs and trys to move forward...lucky for the brakes I guess! But even with the ac off it does still rev up and down..
 
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