Quote:
Originally Posted by Dfwflyr
Im not sure what to think about my issue. My main problem is that my car is running rich and I cannot adjust to mixture any more lean without it stalling. Testing my WUR i got 35 PSI on the first start. 2 minutes later I started it up again and had 68 psi for the rest of the night working on it. i believe 68 psi is too high. I went to work on it yesterday and I got 45psi (cold). I took off the banjo fitting and made sure the screen was clean. I also rang out the connector on the unit and intermittantly got 28 ohms. There was some corrosion on the connector plugs that i tried to clean the best that I could. The intermittant ohms reading and what appears to be high pressure has me concerned. (when I say intermittant I mean open circuit moving to 28 ohms and then back open)
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First, you need to do a proper test of your WUR and get solid numbers. From what you've posted though, your pressures are, indeed, too high. 35psi is ~2.3 bars which is generally too high for ambient temperatures.
Two minutes later, your pressure was 68psi (~4.5 bars) which is too high for warm pressure and is very close to
system pressure. Did you test your system pressure?
Even though you cleaned out the screen on the WUR, you still may have a blockage in the return circuit. It sounds like your heating element works as your pressures do change over time.
What I'd suggest is to re-test your WUR pressures and report just how you performed the tests and what were the results. Next, is to be sure the entire return circuit is free-flowing. Fuel pressures are adjustable on the WUR and you can recalibrate the WUR if you can confirm the heating element works and the return fuel circuit is clear.