SOURCE: Engine light comes on - Code shows P0300 and then
OBD II 300 Random/Multiple Cylinder Misfire Detected
When the misfire monitor detects a misfire, it will trigger the check engine light with the specific cylinder number as the last digit in the P030X code. For instance cylinder 1 misfire is P0301, cylinder 2 is P0302 etc. In this case we have either multiple cylinders misfiring, or the computer simply can't determine the specific cylinder, and as such we are left with the P0300 in computer memory.
Possible Causes:
Fuel injectors, related wiring, sensors and computer issues
Running out of gas, or poor fuel quality
Evaporative emissions system (EVAP) concerns: fuel vapors leaking into engine
Incorrect Fuel Pressure
EGR system concerns: leaking EGR valve or restricted ports
Base engine concerns: low compression, valve train problems and timing issues
Ignition system concerns including, but not limited to:
Faulty spark plugs
Faulty coil or related wiring
Ignition module or related wiring issues
Ignition related sensor faults or wiring issues
SOURCE: I have a 2001 Dodge Ram 3500 5.9 litre gas engine.
CHECK THE THROTTLE CABLE . IS HOLD THE TPS SENSO ON . MAP SENSOR IS OK
SOURCE: 1997 Dodge Ram 1500 5.2 liter won't start
I WOULD SAY IT IS THE COMPUTER {BRAIN} THAT IS WHAT SENDS THE FIREING ORDER AND VOLTAGE AND SETS THE TIMEING SPECK I WOULD SAY CHECK THE COMP
SOURCE: 1998 dodge ram pickup 318 eng.
If the engine seems to run fine over 1450 RPM maybe there is a vacuum hose leaking or EGR valve is slightly stuck open. Any help from the OBD II trouble codes? Or is there simply no MIL and no stored information in the OBD II computer read at the local parts store through the connector by the drivers knee?
2.7L Engine
3.2L & 3.5L Engines
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