P CODES (POWERTRAIN) P0300 - P0399

I Replaced The Coil And Plug In Cylinder One And Still Throws Same Code. What Else Could It Be? No Other Codes Present Only Po301. Thanks...

Check Engine On Po335 Tach On Dash Goes Crazy 2500rpm To 55oorpm I Have Already Changed Crank Sensor. Cant Get Truck To Do Relearn. Also...

I Have A 2005 Pt Cruiser 2.4 L Turbo. Some Days The Car Will Act Fine Like Nothing Is Wrong But There Are Some Days Where I Cant Make It...

Went Into Get A Hair Cut, Came Out And My Jeep Started Running At A High Rpm's And Was Throwing Three Error Codes; P1391, P0171, And...

I Have A 2004 Acura Tsx Which Is Popping Up Cel Code P0341. This Code Started Popping Up After The Last Oil Change, And I'm Going To...

Trouble Codes Po300 And Po303. What Would Cause This? Can I Get Mr. Ken (admin)?

Service Engine Light Came On After Engine Was Running Great. Engine Missed A Few Beats And Stalled In A Parking Lot When Hot. Then Set...

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...