Engine Controls/Emissions - DTC P0420 Revision
Bulletin No.: 04-06-04-083Date: November 12, 2004
SERVICE MANUAL UPDATE
Subject:
Revised DTC P0420 Catalyst System Low Efficiency
Models:
1996-2001 Chevrolet/Geo Metro
1996-2004 Chevrolet/Geo Tracker
1996-1997 Pontiac Sunrunner
1996-2001 Pontiac Firefly
Built with the engines shown.
This bulletin is being issued to revise Step 8 of DTC P0420 Catalyst System Low Efficiency in the Engine Controls sub-section of the Service Manual. Please replace the current information in the Service Manual with the following information.
The following information has been updated within SI. If you are using a paper version of this Service Manual, please make a reference to this bulletin on the affected page.
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