My 2008 335xi E90 came with an EKPM3 module. In the last year or so my LPFP pressures no longer stay at 72psi when cruising or idling. Instead pressures drift down into the 60s, and then into the 50s, and then into the 40s as I drove along and the engine heats up. The engine otherwise feels...
Hey Guys,
Some of you may know this already or this maybe the first you have heard: Using a Fuel-It! Stage 2 Pump requests a larger amount of draw from the PWM system to modulate fuel flow in tank to pressurize the HPFP. This is the EKP module that does this based upon PWM, load and RPM.
The...
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