I replaced the catalytic converter and o2s11 and have driven the truck for almost 300 miles. The o2 sensor heater monitor cleared, but the o2 sensor monitor and catalyst monitor have not. There are no codes coming up on the scanner. The battery is about two years old and has given me zero problems. The starter, on the other hand, needs to be replaced. Could this be why it won't reset?
Why won't my catalyst monitor and o2 sensor monitor clear? on 1997 Dodge Ram 1500
by bigred9966 in Fenton, MO on March 15, 2013
1 answer 1 comment
ANSWER by arturo08 , March 15, 2013
sensor connections may be dirty. mechanics miss this problem sometimes.
COMMENT by bigred9966 , March 15, 2013
I'll try that, thanks.