injector

Car started misfiring on the way to work, running really rough. Got codes P0204 and P0304, as well as the 'service traction control and service stabilitrak' messages. I checked the cylinder 4 injector with a noid light and the light is constantly on when the engine is running, the other...

A few weeks ago my 1988 LeSabre 3800 began to run rough/misfire intermittently. One minute its running smooth as silk, the next its chugging and shaking like crazy. I checked for ignition problems, all cylinders checked out fine for spark regardless of how the engine was running. I listened to...