Mixture adjustment and/or over-advance ignition timing. Make sure the O2 sensor is working. Dennis
-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of S.Harrison Sent: Tuesday, April 15, 2003 12:03 AM To: vanagon@GERRY.VANAGON.COM Subject: 82 Failed CA Smog Test- help! 82 Vanagon Westy. 89K on original engine. Took it to a local garage that is certified to smog test vehicles up for the CA biennial inspections. Drove it for a about 2 hours prior so it was good and warmed-up. I passed all aspects of the test but the CO% at idle -- I was at 5.56%, with a maximum allowable of 2.00. The CO% at 2500 RPM measurement was fine, about 0.62%. So what could help? I'll be changing the oil and filter, installing new plugs, cap, rotor, and points before the next check, but any ideas on how I can lower the CO percentage? Could the AFM be at fault? Leaky injector seals? TIA ... |
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