PQC Part Restriction - Catalytic Converter Part Numbers 15147065 and 15873413 - keywords 08-06-05-002 dtc EI08085 engine exhaust information lamp light low MIL no noise p0420 performance poor power

This PI was superceded to remove a question from the PQC questionnaire that referred to EI08085 because EI08085 was cancelled on 4/23/2008. Please discard PIP4391.

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

As of 4/14/2008, catalytic converter part numbers 15147065 and 15873413 are on restriction through the PQC to assist engineering with product concern identification.

To order either of these restricted part numbers, complete the questionnaire below and contact the PQC at 1-866-654-7654 to review your answers:

1. Customer Concern (as it reads on the RO):
2. Does the vehicle have a GM Performance Stage 1 or Stage 2 kit installed? If yes, which kit?
3. Is the air inlet/filter stock?
4. Is there any sign of water in the air inlet?
5. Is the exhaust system stock?
6. List all DTCs:
7. Has the exhaust flex joint been inspected? If yes, are there signs of corrosion, cracks or damage? If no, inspect before calling PQC.
8. Has the restricted exhaust procedure in SI been performed? If yes, provide results. If no, perform test before calling PQC.
9. Calibration/software ID # for ECM (from Tech2):

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.