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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 09-23-2009, 11:32 PM   #1
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Default P0201-p0202-p0203 -p0204 -p0205 -p0206

P0201-P0202-P0203 -P0204 -P0205 -P0206

P0201 Cylinder 1 Injector Circuit Malfunction
P0202 Cylinder 2 Injector Circuit Malfunction
P0203 Cylinder 3 Injector Circuit Malfunction
P0204 Cylinder 4 Injector Circuit Malfunction
P0205 Cylinder 5 Injector Circuit Malfunction
P0206 Cylinder 6 Injector Circuit Malfunction

The PCM has detected a fault in the injector or the wiring to the injector

The symptoms for this code will likely be a misfire and a rough running engine. Poor acceleration. The MIL will also be illuminated.

The causes could be any of the following:
  • Bad injector. This is usually the cause of this code but doesn't rule out the possibility of one of the other causes
  • Open in the wiring to the injector
  • Short in the wiring to the injector
  • Bad PCM
Possible Solutions
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obd2, obdii, p0201, p0202, p0203, p0204, p0205, p0206, p201, p202, p203, p204, p205, p206

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