TheLazyRocket Posted October 1, 2014 Report Posted October 1, 2014 (edited) 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 October 1, 2014 by TheLazyRocket Quote
ChibiBlackSheep Posted October 1, 2014 Report Posted October 1, 2014 Random misfires is usually fueling related. Last time you changed the filter? Plugs/wires/etc are usually a specific P030# code. Quote
TheLazyRocket Posted October 2, 2014 Author Report Posted October 2, 2014 I also replace my fuel filter about same time plugs and wire. the coil pack is probably old haven't messed with it. Quote
dodgethis Posted October 4, 2014 Report Posted October 4, 2014 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. Quote
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