2002 Pontiac Montana Service engine lamp on

2002 PONTIAC MONTANA
96,000 MILES • 6 CYL • FWD • AUTOMATIC
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BIGWRENCH
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  • 1 POST
After using my diagnostic tool found a code P0410.
Supposed to have something to do with the Secondary Air Injection System-where do I look from here to repair. I can clear the code but eventually after driving several days will return.
Mar 9, 2008 at 12:03 PM
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MERLIN2021
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First thing is look for any heat damage to the hoses or diverter valves that lead into the exhuast, this system injects air into the exhaust to aid in converter operation. If no problems found, you need a scanner that can read freeze frame data, and has two way communication to the module, You must be able to issue commands to operate the pump, and monitor 02 sensor values...GM dealers?
Mar 9, 2008 at 12:15 PM