Thread: What should the fuel pressure be?
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Old 07-09-2009, 06:16 PM
RICK LAKE RICK LAKE is offline
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Default Depending on cams shaft and vacuum signal from motor
olddog If the motor is stock, about 36-38 psi at idle with 16-20 psi of vacuum going to the fuel pressure regulator. With out vacuum you are looking at 43-45 psi at idle. You need to road test and watch your A/F ratio. The other thing is to watch for black smoke coming from the side pipes under hard accel. Going to a guy at a dyno shop that knows the system is the safe way. Let them setup the ECU. Rick L.
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