Mike's Workshop Manuals: Service manuals for every vehicle

Home >> Chevrolet >> 2006 >> Impala LTZ >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Control System - 5.3L - DTC P0136 To DTC P0446) >> DTC P0420 >> DTC Descriptor

DTC Descriptor

WARNING: This page is about a different variant/trim than selected.

This diagnostic procedure supports the following DTC:

DTC P0420: Catalyst System Low Efficiency

scientia non olet · About Mike's Workshop Manuals