2003 Dodge Truck p0300 bairly idles ,runs rich, lopes,

2003 DODGE TRUCK
132,000 MILES • V8 • 4WD • AUTOMATIC
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RLALLEN
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mult miss on scanner all cyls-loads up lopes,extra rich exh cant breath in the shop, spark advance on scanner 126* yes 126*, will smooth out above 3000, still counts all cyl miss. customer eventually told of a crank sensor code months ago.????
Jan 19, 2009 at 6:30 PM
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RASMATAZ
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2003 Dodge Truck p0300 bairly idles ,runs rich, lopes

P0300 Random misfire normally caused by vacuum leaks and bad fuel.


Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel
Jan 19, 2009 at 6:48 PM