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Issue with idle Holden VS

DavoBully

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Hi all,

I’ve got a problem with my idle speed it seems to idle at about 1500-2000rpm, I’ve replaced the sensors on the throttle body and cleaned it and I’ve also changed the mass air flow meter any ideas?
 

knos

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IAC on the throttle body? mines a bit sticky and i have only done 10,000kms since it was installed...! also it was a delphi unit.
 

DavoBully

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IAC on the throttle body? mines a bit sticky and i have only done 10,000kms since it was installed...! also it was a delphi unit.
I’ve replaced the IAC, what do you mean Delphi unit?
 

harrop.senator

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Delphi is the original equipment manufacturer.

Id be looking for vac leaks if already replaced all sensors. But usually when I get this issue it has been a stuck iacv.
 

DavoBully

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Delphi is the original equipment manufacturer.

Id be looking for vac leaks if already replaced all sensors. But usually when I get this issue it has been a stuck iacv.
I’ve looked for a vacuum leak and cannot find one but a stuck IAC sounds likely can it be stuck with a new one?
 

harrop.senator

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Could be but I'd doubt it. Do you smoke?

If so unplug the fans and blow it all around the motor idling see if it brings it in.

I absolutely hate vacuum leaks. I've failed to find them more then once.
 

richrever

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Spray startyabastard around all the likely places manifold/plenem/valley cover vacum hoses ect do this with the car running of course and listen for a change in revs as it sucks in more go go juice. Smoking? your better than that? (All tobacco donations gladly accepted)
Richrever01
 
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