2000 mercury mystique 2.0 zetec
Swapped out plugs that were severly worn for new autolite app5364s, drove home that night just fine, hell even sounded better drove better, went out next day and soon as i started it up it was stuttering/misfiring like a plug was wrong or injector not working something, have since swapped all plugs around etc, breaking two damn it, new wires didnt touch anything else but wires and plugs, all correct order all seated well all gapped right, tried resetting pcm, tried moving **** around etc, i have had a code p1633 thats flashed on daily at start up for almost two years and never figured out why but as car ran just fine never worried about it, am i missing something here. coil maybe?
Swapped out plugs that were severly worn for new autolite app5364s, drove home that night just fine, hell even sounded better drove better, went out next day and soon as i started it up it was stuttering/misfiring like a plug was wrong or injector not working something, have since swapped all plugs around etc, breaking two damn it, new wires didnt touch anything else but wires and plugs, all correct order all seated well all gapped right, tried resetting pcm, tried moving **** around etc, i have had a code p1633 thats flashed on daily at start up for almost two years and never figured out why but as car ran just fine never worried about it, am i missing something here. coil maybe?