My local parts house ran a diagnostic and came up P0300 troubleshooting. Random cylinder misfire. It is a fuel system malfunction, ignition fault, vacuum leak, or engine mechanical. Is there any way I can narrow down the problem? Sometimes the engine runs as smooth as new, and other times runs as though a cylinder is not firing. The service soon light also is intermittent on and off.
Mar 15, 2010 at 2:27 PM