Can a misfire be intermittent?
Intermittent misfires are often caused by a weak spark or a lean fuel mixture. Random misfires that jump from one cylinder to another may be caused by a lean fuel condition or a weak spark.
Are intermittent misfires bad?
Intermittent misfires are the worst kind to diagnose because the misfire comes and goes depending on engine load or operating conditions. They seem to occur for no apparent reason. The engine may only misfire and run rough when cold but then smooth out as it warms up.
What causes a misfire in only one cylinder?
Lean misfire causes that only affect one cylinder include a dirty fuel injector, an open or shorted fuel injector, or a problem in the fuel injector driver circuit (wiring or PCM). Compression problems that may cause a misfire include a burned exhaust valve, bent intake or exhaust valve, or leaky head gasket.
How long does it take for a misfire code clear itself?
Yes, a misfire code can clear itself right away as soon as the misfire stops. Usually within one or 2 trips it will clear on it’s own. When the computer sees no more misfire.
What does the misfire code p0306 mean?
P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 6 is that it’s going to be the sixth cylinder in the firing order.
What does p0306 mean on BMW cylinder 6?
The P0306 code means that the cylinder 6 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 6. If the problem persists more tests needs to be done to diagnose problem, see “Possible Causes”
What does the p0306 code on a Honda Accord mean?
The P0306 code means that the cylinder 6 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 6. If the problem persists more tests needs to be done to diagnose problem, see “Possible Causes”.
What to do if your spark plug says p0306?
You can do the same test with the spark plug, i.e., move cylinder 6 plug to say cylinder 3 and if the misfire is now P0303 then the plugs are at fault. Replace spark plugs and spark plug wires/ignition coil packs if needed and recheck for misfires.