surging idle
- scd88ga
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Re: surging idle
Money pit Beretta wrote:It's weird that Bosch would list it a 16.
Yeah, that's because Bosch sucks! lol Nobody's perfect, I use to find errors in listings all the time in the Hollander Parts Interchange system that all the salvage yards use!

'94 Quad 4 H.O. 5 speed Z26, Red & Rare! 1 of 896 Quad Z26's and of those it's 1 of 167 red paint/gray interior!
Need A Quality Used Part? Contact me at Posihead Auto Parts!
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Need A Quality Used Part? Contact me at Posihead Auto Parts!
https://www.facebook.com/pages/Posihead ... 3779691724
- Money pit Beretta
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Re: surging idle
Ignition control module, all the way
Re: surging idle
I found my problem on my Beretta and for me is the EGR. You should also check that. Good Luck.

Chevrolet Beretta GTU/GT
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Re: surging idle
Well I am all out of ideas if anyone has any more. ha. I hooked up a Snap-On Verus to it today, the o2, EGR, Map, IACV, TPS, and coolant temp sensor are all functioning like they should. All the readings while the engine was running were normal. I found one small vac leak at the intake plenum so put new gaskets on and a throttle body gasket. Still cant figure this out.
Well found it. after all this, while watching more live scans on it the car was supposed to be fast idling and wasnt. Popped a different idle air control valve in even though mine was at ohm spec. and cleaned. Problems were gone, car started fine after up to temp and even started fine cold, idle surging at stop signs gone, and no stalling.
Well found it. after all this, while watching more live scans on it the car was supposed to be fast idling and wasnt. Popped a different idle air control valve in even though mine was at ohm spec. and cleaned. Problems were gone, car started fine after up to temp and even started fine cold, idle surging at stop signs gone, and no stalling.