Misfire on Cyl 6, p0306. The only thing wrong I found was a crack in the spark plug boot that was arcing to the exhaust manifold for a long time I estimate. I replaced the coil pack. Could the ECM become locked into a setting that won't let #6 fire at the right time? There is spark, good compression, The injector doesn't leak and not plugged. I had thought there may be a massive vacuum leak at the intake manifold near #6 but the vacuum reading is correct at 17.5 inHg.@2100 feet. I need someone to tell me how the ECM discovers #6 misfire. Thanks
have the same problem?
Tuesday, June 17th, 2014 AT 12:27 AM