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View Full Version : how accurate is the Aeromotive Fuel Pressure Regulator pressure gauge?



toadster
05-24-2023, 01:47 PM
looking at a recent data log, I noticed the PSI at the ECU measurement is about 57 PSI (not enough) - although the aeromotive gauge is showing 65-67PSI

which should I believe? what has everyone's experience been with the Gen3 Coyote?

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edit:

in the Ford instructions - mentions 65PSI, but 55psi at the fuel rail, engine off (assuming this is the ECU pressure reading?)

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so it seems I may still be short on PSI according to the ECU