HD1 - Check Possible Causes to Misfire

NOTE: For a complete description of the Misfire Monitor, refer to system monitors. Misfire Detection Monitor

Misfire Continuous Memory Diagnostic Trouble Codes (DTCs):

P0301-Cyl #1, Inj Test Pin 75

P0302-Cyl #2, Inj Test Pin 101

P0303-Cyl #3, Inj Test Pin 74

P0304-Cyl #4, Inj Test Pin 100

P0305-Cyl #5, Inj Test Pin 73

P0306-Cyl #6, Inj Test Pin 99

P0307-Cyl #7, Inj Test Pin 72

P0308-Cyl #8, Inj Test Pin 98

P0300-multiple cylinders misfiring, or cannot identify cylinder due to Crankshaft Position sensor failure.

Possible Causes:
- Ignition System.
- Fuel Injectors.
- Fuel Pressure.
- Evaporative System.
- Canister Purge.
- Base Engine.
- Running out of fuel.

NOTE: Running out of fuel may turn on the MIL and possibly store a Continuous Misfire DTC.

- Has the vehicle recently run out of fuel?

YES -- CLEAR Diagnostic Trouble Codes, MIL will turn off. Clearing Diagnostic Trouble Codes

On-Board Diagnostics II (OBD II) system OK. RETURN vehicle to customer.

NO -- GO to HD2. HD2 - Check For Other Continuous Memory (DTCs)