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Random/Multiple Cylinder Misfire


TheLazyRocket

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So I couldn't pass my smog, 97 Cutlass Supreme SL. I pulled two OBD codes 1-P0300=Misfires and 2-P0441=Evaporative Emission Control System Incorrect Purge Flow. I don't know why its misfiring and the Purge solenoid looks to be missing a hose. I replaced plugs and wires a lil while back. Any suggestions would a fuel cleaner help, might a vacuum leak be the cause or an old coil pack?

Edited by TheLazyRocket
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So I couldn't pass my smog, 97 Cutlass Supreme SL. I pulled two OBD codes 1-P0300=Misfires and 2-P0441=Evaporative Emission Control System Incorrect Purge Flow. I don't know why its misfiring and the Purge solenoid looks to be missing a hose. I replaced plugs and wires a lil while back. Any suggestions would a fuel cleaner help, might a vacuum leak be the cause or an old coil pack?

 

I have had something similar happen. I kept having cylinder 3 and 6 act up, and ended up replacing the injectors, coil pack, and did a plenum cleaning.

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