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Power FC and ATMO Bovs

shonen

By shonen,
in Engines & Forced Induction

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shonen Grand Master

shonen

Posted
Posted

Hi guys

Just wondering if the PFC is more "sensitive" to atmo bovs than the stock ecu ??

Cause in my case the car had a greater tendency to stall after the PFC fitment.

I did get a Z32 afm at the same time would this contribute to it ?

I did plumb it back and the problem is now fixed.

Just curious to know whether if this was an unusual case for me or have anyone else experienced this on their cars ??

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https://www.sau.com.au/forums/topic/77127-power-fc-and-atmo-bovs/
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Sydneykid Grand Master

Sydneykid

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Posted

Atmo BOV's make the car run rich on throttle off. So at low rpm's, if the PFC was tuned a bit richer than the standard ECU, then there will me a higher tendancy to stall. It can be tuned out, it is quite fiddly, with leaning off the A/F ratios at low rpms and advancing the ignition timing. This CAN NOT be done on the dyno, it has to be done with road testing.:stupid:

shonen Grand Master

shonen

Posted
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Posted

thanks sydney kid.

Just curious cause most of the tuners I have spoken to basically said that you shouldnt really run atmo bovs on afm equipped cars and if I REALLY want it than I should change to an ecu which runs on MAP sensors.

In my case tightening the spring tension on the bov to the hardest setting did improve the stalling issues dramatically yet the tuner still had a hard time getting rid of it.

In hindsight we found that the actually quality of the bov itself was the problem. ie it was leaking, ever so slightly but still leaking regardless.

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