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M20 ECU
Posted: Dec 28, 2015 1:19 PM
by darbyhood
Is there any sort of ECU preferred for a 2.7L M20 with forced induction?
Or could the car run without it? I don't want the car miss firing because it cannot register the positive pressure unless the ECU inside the car isn't advanced enough to register it
Re: M20 ECU
Posted: Dec 31, 2015 10:48 PM
by turbodan
The ECU only sees a load signal from the AFM and a handful of sensor inputs and calculates pulse width and ignition advance from that. It does not know you have a turbo on the motor. It doesn't need to know until you get over a certain boost level. You can use other methods to provide fuel enrichment and the ignition advance is good up to at least 7 psi.
Re: M20 ECU
Posted: Jan 05, 2016 3:48 PM
by darbyhood
So as long as I am running less than 7psi of boost I don't need to replace it?
That's a good thing cause that will save me a few thousand dollars
Re: M20 ECU
Posted: Jan 05, 2016 7:11 PM
by tschultz
Both your questions and answers indicate that you really need to do more research into the realm of FI!
Re: M20 ECU
Posted: Jan 07, 2016 11:26 AM
by turbodan
tschultz wrote:Both your questions and answers indicate that you really need to do more research into the realm of FI!
Definitely this.