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What is the standard fuel regulator setpoint? I have uprated my fuel pump and got my green giant injectors fitted and have just fitted a Sx adjustable regulator. The green giant are max rated at 3.8 bar but I'm suffering big misfires and exhaust backfiring at that setpoint so have dropped it to 3.4bar but whilst it is a bit better...no backfiring the misfire is still present, but unpredictable on when or how it appears on throttle position. Because I have a better fuel supply, injectors which can when required deliver more fuel do I set the regulator to standard pressure...or what do you suggest?
 

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Marrk said:
What is the standard fuel regulator setpoint? I have uprated my fuel pump and got my green giant injectors fitted and have just fitted a Sx adjustable regulator. The green giant are max rated at 3.8 bar but I'm suffering big misfires and exhaust backfiring at that setpoint so have dropped it to 3.4bar but whilst it is a bit better...no backfiring the misfire is still present, but unpredictable on when or how it appears on throttle position. Because I have a better fuel supply, injectors which can when required deliver more fuel do I set the regulator to standard pressure...or what do you suggest?
Standard fuel pressure is 3 bar on idle, guidance pressure hose plugged off ( I don´t know its right name in English;oops: ).Silly quesion from me but do you have new program in ecu? Without it injectors will be open same time as with original ones and engine will choke. I have same 465cc injectors and I use normally 2.5bar pressure and when I drive hard I will rise it to 3.0bar or more.
 
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