jerzyjim Posted December 26, 2008 Share Posted December 26, 2008 I have a 1997 sc300 with 123,000 miles on it. There is an intermittent CHECK ENGINE LITE for a short time and then goes off for a week or two and then reappears for a while once again. The car runs wonderful and just went thru state inspection with unbelievable low emissions. I don't know how to get the codes when the CEL appears. I have a theory, could the O ring gasket on the gas cap be the culprit. thanx for all help, jerzyjim Quote Link to comment Share on other sites More sharing options...
1992LexusSC400 Posted December 26, 2008 Share Posted December 26, 2008 When the CEL is on, take it either to the Lexus Dealership, or to Oreily's, Autozone, etc.. and let them pull the codes... Then you can go from there... There is no other thing that I know to do but to disconnect the battery for 20 minutes and reconnect. This will reset your computer.. If there is a further problem, the CEL will come back on. You need to find the codes and then we can help you further... There are hundreds of things it could be. Sorry couldnt give you anymore help.. Quote Link to comment Share on other sites More sharing options...
TXSC3 Posted December 27, 2008 Share Posted December 27, 2008 In my experience more often than not a CEL is caused by a failed oxygen sensor. However, since your car is a 96+ it has OBD II so any half way good auto parts store will pull the codes for it for free. Quote Link to comment Share on other sites More sharing options...
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