P0305/6 Multiple Cylinder Misfire (5 & 6)

SYMPTOM LIST
P-0305 CYLINDER #5 MIS-FIRE
P-0306 CYLINDER #6 MIS-FIRE

Test Note: All symptoms listed above are diagnosed using the same tests.

P-0305 CYLINDER #5 MIS-FIRE

When Monitored
With the engine running, after successfully performing Crank Sensor learn.

Set Condition
When more than a 2% misfire rate is measured during two trips, or with a 10% to 30% misfire rate during one trip.

P-0306 CYLINDER #6 MIS-FIRE

When Monitored
With the engine running, after successfully performing Crank Sensor learn.

Set Condition
When more than a 2% misfire rate is measured during two trips, or with a 10% to 30% misfire rate during one trip.

OTHER POSSIBLE CAUSES FOR MIS-FIRE
- Cam, crank, valve timing, or vacuum problem
- Electronic ignition coil output low
- Engine mechanical problem
- Secondary ignition pattern irregular
- Fuel contamination
- Fuel pressure leak down out of specification
- Fuel pump amperage out of specification
- Fuel pump capacity out of specification
- Fuel pump pressure out of specification
- Mis-fire does not reoccur