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mark houghton mark houghton is online now
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Join Date: Jul 2008
Location: Central Washington State
Posts: 4,435
Holy crap, you had cylinders 1 and 5 filled to the top with fuel? No bueno amigo. Who knows how much is sitting in the other cylinders. It may be wise at this point to drain and refresh your oil, pull all the plugs and let that gas evaporate. Maybe stuff an air hose down through the plug holes to speed that up. Unless I'm missing something in your description, can't think of running it with all that gas in the cylinders and likely maybe fouled plugs. Mixture adjustment won't tell you anything until all that gas is gone.

I'm scratching my head here. Your pressures are fine, all acceptable ranges. If you've been following my recent posts, take a close look at the position/height of the metering plate. If it's too low...as mine is for whatever reason...then you will squirt gas through the injectors as soon as you turn on the key. You left your pumps running for 10 minutes just to warm up the WUR for your pressure tests and dumped pints of fuel into the cylinders. That was my concern the other day when I checked my pressures, so instead I connected external power to the WUR to heat it up (3 minutes is enough) for the warm CP before just briefly running the pumps up to pressure.

So you got it running with 2 lean turns (that's a lot btw) on the mix screw, but still way too rich. Surprised your idle didn't improve with adjusting it even leaner. I'm not being much help, just brain dumping at this point. Something way out of whack, we're all missing something here.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, B&B intercooler, stock 3LDZ.
Old 04-24-2025, 03:08 PM
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