shawkur16v

I believe the regulator is at least working to some extent. If I remove the vacuum source from the regulator with the vacuum hose capped off my AFR goes crazy rich, presumably from the higher pressure. I'll remove the sensor and put a mechanical gauge in that spot and check what it shows. I'll also replace the second fuel filter while I'm down there.

Apologies for the delay, had to take the transmission out of the car. Here are 2 log files, 1 of the fuel pump prime after key on, and another idling Scirocco16vT_Base_V2.pclx FeulPumpPrime.llgx FuelPumpRunning.llgx

Recently finished up my link installation, and everything went great. However, the fuel pressure sensor I installed 0-150 PSI from lodoller motorsport seems to be inaccurate. With the engine off, if I turn the fuel pump on it will show ~130PSI, with the engine idling it will show ~117 psi. This is a return style system, and I installed the sensor in the feed line. The setup is as goes: Low pressure in-tank feed pump->Large particle filter->High pressure AEM 400LPH Inline->-6 feed up to engine bay->-6 fitting with 1/8NPT for pressure sensor->Ethanol content sensor->Small particle filter->Fuel rail->-6 return to tank. I would expect with the engine off and pump running to see around 58PSI with the 4 bar FPR. When I turn the pump off it will read and hold at ~50PSI for a few minutes at least. I'm not planning to use the fuel pressure in closed loop, so it's not a big deal that it appears to be incorrect but I would prefer that it were reading correctly.