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Running rich on 4 cylinders
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Posted by: Tang

Ok, changed the plugs in my car tonight, they were WAY over due.

My car is a '92 GT, B cam, 73mm air meter, 70mm t-body, accel cap,rotor and wires, I always run Motorcraft plugs, no cats, smog pump by passed, cold air kit with K&N, Super chip power module, and Turbo Tube cat back.

Well anywaym back to my question. When I pulled the plugs I noticed 6,7,8 and 2 was black and smelled like gas, the rest looked pretty much normal for over worked plugs.

What would cause it to be rich in select cylinders ? is it just where the plugs were old and not sparking good ? I havent run it since I changed the plugsm because Im still waiting on my K&N to dry from its bath, but before the plugs it would throw some flood smoke everytime you revved it hard.

Posted by: RacingJason

Check your plug wires, but you most likely have some partially clogged injectors. (They start to squirt instead of spray)

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