#78560, "Inline Fuel Pump Causing extra Fuel Pressure = Rich?"
Just wondering it been bugging me a while, for some reason my car runs rich, rich enough to not pass smog and have black deposits on my bumper and tailpipe. I took the turbo off of the car and still running the err.. stock star fuel setup. Mine has an inline pump instead of a intank. Is it possible that the pump making my mixture rich since it pumps so much fuel. I always thought that the fuel pressure regulator takes car of the extra pressure and since my car doesn't boost the FMU doesn't increase the fuel pressure. Could my fuel pressure regulator be bad or something. I was running some pretty high fp O_o
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