Document ID# 2048767

Subject: Intermittent P0171 And P0174 - keywords 6.2 DTC ECM engine fuel HO2S injector lean LS3 MAF MAP MIL 02 pressure sensor SES #PIP4319 - (01/14/2008)


Models: 2008 Chevrolet Corvette Equipped with the 6.2 engine RPO code LS3

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

Condition/Concern:

A dealer may encounter a 2008 Corvette with a customer concern of a SES light on and DTC P0171 and P0174.

Recommendation/Instructions:

Complete the current SI diagnostic for any trouble code or symptom found.

Engineering is investigating intermittent P0171 and P0174. Please do not replace components unless directed to by the SI diagnostic.

Note: It is important to complete the current diagnostics due to the possibility of having a basic lean condition/vacuum leak.