Chevrolet Lumina Problem Report

Chevrolet Lumina Check Engine Light With Code P0171 and/or P0174

(3 reports)

The exhaust gas recirculation (EGR) tube which connects the EGR valve to the intake manifold may develop an engine vacuum leak, causing the Check Engine Light to illuminate with code P0171 and/or P0174 stored.

Still hasn't been fix. -
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