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My B20e is running rich, what to do? 140-160 1973

posted by  geiger on  Tue Jan 20 15:41 CST 2004
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Greetings! I am experiencing a rich running engine in my 144. It goes something like this, engine starts up, runs fine and pulls hard. After about 10 minutes of driving the pedal becomes "mushy" and unresponsive, accompinied by a significant loss of power and high fuel consumption. What I have been able to deduce is that the engine runs great when cold and preformance drops as it warms up due to the constantly rich mixture.
I have checked the wires from the ECU to the #2 temp. sensor, and from the temp. sensor to ground. both wires seemed ok. And I replaced the #2 sensor just because, not that I expected it to help, and it didn't.
So I'm looking for other culprits. Could it be the vacuum sensor? Clogged air filter? Gremlins and bad mojo?
For your assistance, I thank you,
Jonathan.






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