Having A Misfire Problem

1996 Mystic Cobra

New Member
Feb 13, 2013
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I have a 1996 Cobra and it just recently tripped the check engine light. The code read cylinder 3 misfire and system too lean. I knew about the system to lean because whomever had the car before put some retarded exhaust on it and i havent had the money to get new exhaust yet. Anyways I just replaced the plugs, plug wires and coil packs on it hoping it would fix the misfire. It didnt. Any suggestions??
 
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Is it a consistent "this engine is running on seven cylinders" misfire or do you only feel it misfiring under certain conditions (e.g. heavy throttle)?

I'd pull the plug on cylinder 3 and check its condition (color, electrodes etc). Maybe you can do a compression check to make sure the cylinder is mechanically sound.

If you're also getting a system too lean error it may be a real fuel delivery error. Do you know if the error was on bank 1 or 2?