P0300 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 09-23-2009, 11:20 PM   #1
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Default P0300

P0300


Description
Random misfire
This is a random misfire and not connected to any one cylinder

Symptoms
Symptoms may include:
  • Engine may be harder to start
  • Engine may stumble and or hesitate
Causes
A code P0300 may mean that one or more of the following has happened:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor
  • Faulty fuel injector
  • Faulty ICM
  • Burned exhaust valve
  • Faulty catalytic converter
  • Running out of fuel
  • Poor compression
  • Faulty MAF
  • Defective computer
Possible Solutions
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Related Topics
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P0300 Misfires past 4000 RPM impy 2000-2005 20 10-27-2006 10:00 PM
DTC P0303, P0300... Flashing Check Engine Light BillBoost37 1992-1999 19 06-14-2006 05:03 PM
sudden onset missing, P0300 code, and white smoke?? laff66 1992-1999 13 05-23-2006 11:14 PM
Code P0300 and weak cylinder on #6 egladman 1992-1999 14 11-28-2005 11:16 PM
DTC P0300 Engine Misfire Detected Wargamer 1992-1999 26 05-01-2005 02:57 PM


Tags
obd2, obdii, p0300, p300

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