Subject: | DTC P0011 and P0014 |
Models: | 2009 Chevrolet Cobalt |
2009 Pontiac G5 |
With RPO LAT 2.2L Ecotec |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
A technician may comment that they find DTC P0011-(Intake Camshaft Position (CMP) System Performance) and/or P0014-(Exhaust Camshaft Position (CMP) System Performance). They may have followed eSI diagnostics and/or the code(s) returned. They may have replaced the ECM with no change.
Engineering has determined that non-ferrous (aluminum) machining debris in the camshaft phasers and or solenoid valves can cause these dtc's to set intermittently. These DTCs typically will set very early in the vehicles life or at PDI.
When the technician follows the eSI diagnostic chart for these codes they may be led to ECM replacement; however additional diagnostics should be made before replacement of any parts.
After inspection of the solenoid valve and wiring per eSI confirms correct electrical operation, check for debris. The technician should inspect each CMP actuator solenoid valve assembly for torn screens or debris on the screens, then clean and replace as necessary. If the dtc continues to reset after thorough inspection and cleaning of the solenoid valves, replace the affected camshaft actuator(s) depending upon the dtc(s) that set.
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.