P CODES (POWERTRAIN) P0300 - P0399

Misfire Occurs After 7 Minutes Idling And Motor Normal Temperature. But No P0304 With A/c On For 20 Minutes Of Idling.

I Just Returned From A 1800 Mile Road Trip And The Car Ran Great. The Day After I Returned Home, It Started Running Really Rough While At...

Hi-i Am Still Trying To Diagnose The Above Mentioned Codes (the Frustrating Po 300) Random Mis-fire. The Po302 Narrowed This Down I Thought...

Engine Performance Problem 1996 Pontiac Bonneville 6 Cyl Two Wheel Drive Automatic I Have A 1996 Bonnie And Its Coming Up With The...

I Have A 96 Cherokee 4.0 4wd 47,300mi. My Check Engine Light Is On And My Jeep Starts And Drive But Them Shuts Down As I Am Driving. I Used...

What Do You Recommend On Trouble Shooting Since My Diagnostic Code At Autozone Read Cylinder 3 Misfire. Code# P0303 How Do I Locate...

Car Has A New Dci, And Front O2 Sensor. Now Displays Code P0340. Cam Sensor. This Car Does Not Have A Cam Sensor. Ideas?

I Have Had The P0303 Cylinder Three Misfire Code For At Least Six Months. We Repaired The Smaller Things Such As The Fuel Injector And Spark...

The Car Will Run Fine For 10 To 20 Minutes Then The Check Engine Light Comes On & It Starts To Vibrate. Had It Checked For Codes Got: P0300...

P0302 Detects A Misfire In Cylinder 2 P0304 Detects A Misfire In Cylinder 4 P0300 Detects Random Misfire P1399 Detects Multiple/ Randmon...