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ECU Fuel CUT? HELP

Mr.R33

By Mr.R33,
in Engines & Forced Induction

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Mr.R33 Enthusiast

Mr.R33

Posted
Posted

I have recently installed a FMIC on my 95 gtst. it already had a full exhaust and was running on close enough to 10PSI.

But as soon as I installed the cooler I found that at heavy acceleration that it was backfiring repeatedly. kind of like a cross between rev limiter noise and a backfire.

I am aassuming that due to the added air that the ECU is compensating by flooding the engine with excessive fuel which in turn retards timing etc and cuts fuel? {purely guessing here!!!!!}

any other suggestions would be greatly appreciated as I am totally flying blind here. I wound the boost down to about 7 or 8 PSI and it seems fine.

Anybody got some suggestions to fix this?

if it is just fuel mixtures would a SAFC do the job

or a complete system like Power FC ?

as I said before I am open to any suggestions.

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https://www.sau.com.au/forums/topic/72029-ecu-fuel-cut-help/
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