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Something very, very wrong Posted by Ari [Email] (#2847) [Profile/Gallery] (more from Ari) on Tue, 16 Oct 2007 18:13:55 In Reply to: 1986 9000 turbo-does anyone know how to code, James R. Lucas, Tue, 16 Oct 2007 06:29:28 Members do not see ads below this line. - Help Keep This Site Online - Signup |
There is no minor mixture mess-up that will drop 2 quarts of fuel into the oil. There is normally no connection between fuel and oil. I can come up with only a couple of ways. First, a fuel injector or two is stuck open. This would pour large amounts of raw fuel into the cylinders, some would get down past the rings into the oil. This could also be happening when the engine is off - the fuel system is pressurized, leaks past a stuck injector, and into the cylinder.
I'd pull the spark plugs and look in. Any one or more cylinder smelling very much of gas?
The other would be a FPR pumping extra fuel into the intake through the vacuum line. To really make life hard, the one-way valve between the hose from the valve cover to the intake is in wrong or not being one way. Low pressure in the crankcase could pull in fuel.
Yes, you can run the engine rich with a bad AMM or temp sensor, or even a bad O2 sensor. But a little rich. Not so rich that two quarts of fuel get into the engine, not burn, and make it past the rings. I'd look for something major.
posted by 76.219.88...
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