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Registered
Join Date: Jul 2008
Location: Central Washington State
Posts: 4,434
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Quote:
Originally Posted by smurfbus
WUR and AAV heater elements get their power from the rear fuel pump relay too so it might think its on cold start if the rear relay is bad.
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Yep, but the rear relay is good (it's new, and unplugging it causes the rear pump to quit as it should - so I don't feel it's the culprit). If that were the case (loss of power to the WUR) then I would expect the rich condition to be there at all times... not just when reaching 3000 rpms, then returning back to normal below 3000.
I may just have an IC o'ring or a vacuum line going bad that doesn't exhibit any problems until it gets heat soaked with the engine off for a few minutes. I don't know....but thanks for your ideas.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, B&B intercooler, stock 3LDZ.
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