Intermittent SES Light And DTC P0300 With Random Misfires On All Cylinders - keywords P0106 P0107 P0171 P0502 P1107
| Subject: | Intermittent SES Light and DTC P0300 with Random Misfires On All Cylinders |
| Models: | 2004-2006 Chevrolet Colorado |
| 2004-2006 GMC Canyon |
| with 2.8L Engine (RPO LK5) |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some customers may comment on a rough running concern and SES light. Upon inspection, the technician may find history misfires on all cylinders, along with any of the following DTCs P0106, P0107, P0171, P0300, P0502, and/or P1107.
Recommendation/Instructions:
If the SI diagnostics do not isolate a cause for this concern, inspect all of the MAP sensor circuits to see if any of them are broken inside of the insulation near the MAP sensor connector. Typically, if one of the circuits breaks inside of the insulation, it will be within a couple inches of the MAP sensor connector. If a broken circuit is found, follow SI wire repair procedures to repair the circuit as necessary and re-evaluate the concern.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
