I just had this code pulled today. The car has been acting funny for the last couple of weeks. It has really been hesitating when I push on the gas. The code says it is a misfire in cylinder 3. What 'em I looking at replacing? Spark plugs, wires, rotor and cap? Or all of the above?
1998 Contour 1500,000+ kms
Power Package Everything
Aluminum Alloy Wheels
2.0L Engine
Canadian Eh?!
Originally posted by tyco: I just had this code pulled today. The car has been acting funny for the last couple of weeks. It has really been hesitating when I push on the gas. The code says it is a misfire in cylinder 3. What 'em I looking at replacing? Spark plugs, wires, rotor and cap? Or all of the above?
OK, I'm not sure what that is in miles but I suspect that its a lot.
I was getting a P0302, misfire on #2 and before you spend good money swapping out parts, check the coil pack.
Mine had coil resistance that was higher than normal and replacing the coil pack solved the problem and restored normal function.
Testing coil primary winding resistance Turn the ignition OFF. Disconnect the negative battery cable. Remove the air intake resonators. Disconnect the wiring harness from the ignition coil. Check for dirt, corrosion or damage on the terminals and repair as necessary. Measure coil primary resistance between the center ignition coil pin (B+) and pins 1 (coil 1) and 3 (coil 2). Resistance should be 0.3-1.0 ohms. If resistance is out of specifications, replace the coil pack. If resistance is within specifications, proceed to secondary windings testing.
SECONDARY WINDING RESISTANCE Testing coil secondary resistance of coil 2-2.0L engine Measure coil secondary resistance between the corresponding spark plug wire towers on the coil.
Coil 1-cylinders 1 and 4 Coil 2-cylinders 2 and 3 2. Resistance should be 12.8-13.1 kilohms. If secondary resistance is not within specification, replace the coil pack.
Good Luck
Gary
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