1998 Saturn SC1 Missfireing

1998 SATURN SC1
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VIPER019
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Engine Mechanical problem
1998 Saturn SC1 4 cyl Front Wheel Drive Manual

I have a 98 saturn sc1 1.9 single overhead. Cyl 2-3 will only fire sometimes at high rpm. I tried to swich the coils around but still have the same problem. This tells me its not the coils. I would guess its whatever sends the power to the coil. Is there some kind of crankshaft sensor or something ?? any input on this issue??
Jan 29, 2010 at 9:11 PM
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RASMATAZ
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Check and test the sparkplug/compression and injectors for cyl 2/3. If okay this is the time you test the CPS and ICM
Jan 29, 2010 at 11:52 PM
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