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Crazy Idle Surging When Engine Warm

Guest INASNT

By Guest INASNT,
in General Automotive Discussion

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Guest INASNT

Guest INASNT

Posted
Posted

This idle situation is really starting to piss me off!

After putting in 550cc injectors, 044 pump, pfc, new clutch and flywheel i am getting this weird idle when the car is warm.

The idle surges from around 2000rpm to 500rpm up and down for about 30 seconds and then stalls. When i restart the car the idle stabilizers for about 5 minutes and then it will do it again.

I checked the z32afm plug, the afm it self and cleaned the idle control plugs but to no luck.

What else could be causing this??

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B-Man Grand Master

B-Man

Posted
Posted

Sounds to me like a dodgy AFM - Have you got another one or stock one you can try as a test ?

Did you check all your wiring after you found that other problem when were swapping PFCs etc ?

Al Grand Master

Al

Posted
Posted

Sounds like you need to tune the PFC a little more. The mixtures could be too rich or even lean. Take it back to your tunner and tell them to play with the idle a little.

My Wolf 3D was surging/hunting and also stalled, the first time i got it back from the tune. Went back to EAS and within 10 mins it was perrr ing :D.

Guest INASNT

Guest INASNT

Posted
Posted
Originally posted by MicK51

Did u get a lightened flywheel?  They can cause a lumpy idle.

yes but it aint that as it come and goes, and when i turn the ac on the idle will stablise abit but then start to do stupid again.

I think its either the z32 afm playing up or a vacuum leak somewhere!

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