Dear Alfisti, I just failed the bi-annual California emissions test on my '89 L-Jet Spider for marginally high CO at 25mph. Here are the results:
2801 @15mph, Max CO Allowed 0.78%, Measured CO 0.78% PASS 2870 @25mph, Max CO Allowed 0.66%, Measured CO 0.78% FAIL The other tests (HC, NOx) passed and actually get better with speed, so the catalytic convertor is working. This looks like a problem with the mixture running rich. The O2 sensor is working and the temperature sensors are working (so the L-Jet is not running rich intentionally because it thinks the engine is cold or the O2 sensor is dead and defaulting to a rich condition). Have any of you experienced a rich condition on an L-Jet that was not due to a dead O2 or temperature sensor? Thanks, Charlie -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
