My 2006 Dodge Stratus is giving the code P 0300 (random misfire). Spark plugs have all been changed. Will it help to always let it warm up before driving, or what else can be done?

Asked by Mar 23, 2016 at 10:27 AM about the 2006 Dodge Stratus SXT

Question type: Maintenance & Repair

1 Answer

75,595

P0300 DODGE - Cylinder Misfire Fault Detected Random Cylinders... Possible causes... - Faulty spark plug (s) - Faulty ignition coil (s) - Clogged or faulty fuel injector (s) - Intake air leak - Fuel injectors harness is open or shorted - Fuel Injectors circuit poor electrical connection - Ignition coils harness is open or shorted - Ignition coils circuit poor electrical connection - Insufficient cylinders compression - Incorrect fuel pressure... The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persist more tests needs to be done to diagnose problem, The control module monitors the crankshaft speed and has detected a misfire condition... Possible symptoms... - Engine Light ON (or Service Engine Soon Warning Light) - Lack/loss of power - Hard start - Engine hesitation P0300 Dodge Description... When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the Crankshaft Position (CKP) sensor signal to vary, the Engine Control Module (ECM) can determine that a misfire is occurring.

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