P1200 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


OBD-II Trouble Shooting Got a code reader? Find out what your GM car's Check Engine light is trying to tell you (and then turn Check Engine light off).

 
 
 
 
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Old 07-02-2010, 06:29 PM   #1
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Default P1200

P1200

Description
Manufacturer code, Injector control circuit

Symptoms
May notice loss of power or a misfire code

Causes

  • Very high fuel ratio
Solutions
  • Check for spark in all cylinders
  • Replace bad spark plug wires
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