ses came on.shows p300.changed plugs,wires,air and fuel filters.didn't fix.runs very strong,just feels like a miss at around 1300rpm or in cruise control.kicks down extremely strong and smooth.what is it?
2006-06-23 03:26:22 · 3 answers · asked by kf97z28 1 in Cars & Transportation ➔ Maintenance & Repairs
ses=service engine soon.P300=code for multi cylinder misfire
2006-06-23 03:42:09 · update #1
P0300, is random missfire code, some or all cylinders are missfireing once in awhile, enuff for the ecm to pick up, you replaced most of the ign. system so most likely vacumn leak or fuel injector or fuel syply problem. If you had scan tool you could see which cylinders are misfiring and when.....Intake gaskets are common vacumn leak with that engine
2006-06-23 03:41:30 · answer #1 · answered by bestwrencher 4 · 0⤊ 0⤋
Not sure what you mean by a "ses" and" p300". Is this a check engine lite and a code you pulled from the ecm?
Anyway, that miss you are feeling, did you check the cap and rotor? Even a hairline crack will cause this same "miss" on low rpms. Had the same problem with my Corvette a week ago, bad rotor.
Your problem sounds like an electrical breakdown to me.
Good luck
2006-06-23 10:35:58 · answer #2 · answered by mailbox1024 7 · 0⤊ 0⤋
It sound like you have some weak vales only one way to fix them that a vale job.....
2006-06-23 10:33:21 · answer #3 · answered by dl200558 5 · 0⤊ 0⤋