Re: Issues with 2011 Speed 3 control.
Since HFS4 is mirroring fuel flow, fuel rail pressure is an important input to bias the fuel duty cycle.
Not sure what you meant by mod jumper at track A?
What fuel pump does this car run?
Question: This car is not running the factory DI fuel injectors? If that is the case, do not use the "green harness" or "x2.5" or "fuel rail pressure".
If this car is using conventional 16ohm fuel injectors, use the red and green wire of "grey Harness".
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Richard L
aquamist technical support
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