murphsubaru Posted February 13, 2009 Share Posted February 13, 2009 Does the check engine light need to be reset after replacing an oxygen sensor??? My light is still on. Quote Link to comment Share on other sites More sharing options...
crash321 Posted February 13, 2009 Share Posted February 13, 2009 yes. disconnect battery for about ten minutes. that will reset your ecm. good luck:) Quote Link to comment Share on other sites More sharing options...
Slegacy96 Posted February 16, 2009 Share Posted February 16, 2009 yes. disconnect battery for about ten minutes. that will reset your ecm. good luck:) That didn't work for me. Quote Link to comment Share on other sites More sharing options...
rtcaravan Posted February 16, 2009 Share Posted February 16, 2009 did you pull any codes out and if so how did you do it because mine comes on and off ??? Quote Link to comment Share on other sites More sharing options...
murphsubaru Posted February 16, 2009 Author Share Posted February 16, 2009 Codes came from Autozone computer. Pulling the negative battery cable for a few hours did reset the Check Engine light. It has not come back on, it must have been the faulty oxygen sensor. Thank you eveyone for your help! Quote Link to comment Share on other sites More sharing options...
crash321 Posted February 16, 2009 Share Posted February 16, 2009 That didn't work for me. Your particular code may be hard set fault, meaning the ECM sees a fault without the engine running, like a sensor that is unplugged. Check around your engine and you will probably find it. If not you may have a broken wire or a bad ground. Quote Link to comment Share on other sites More sharing options...
Slegacy96 Posted February 17, 2009 Share Posted February 17, 2009 Your particular code may be hard set fault, meaning the ECM sees a fault without the engine running, like a sensor that is unplugged. Check around your engine and you will probably find it. If not you may have a broken wire or a bad ground. Interesting. I had a misfire hence the CEL. Dealer replaced ignition coil. Told me if I got another CEL I needed new plugs. Got another CEL shortly after and I replaced the plugs myself. Been driving around with the CEL for 2 weeks now. Quote Link to comment Share on other sites More sharing options...
crash321 Posted February 17, 2009 Share Posted February 17, 2009 mmmm didn't know it was for a misfire. Got me on that one. Maybe your car just takes longer to reset. Take the cable off for a few hours, then reconnect it. That will reset it. It only takes 10 minutes on my 98 OBW. Edit.... Maybe need new wires also, just a thought. Quote Link to comment Share on other sites More sharing options...
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