chrsan Posted January 30, 2010 Share Posted January 30, 2010 Check engine light came on when I had a friend replace the spark plugs. I took my GS 300 to AutoZone and they pulled code PO125. I replaced the Coolant temp sensor and the thermostat but the code still will not clear. I took the car to a shop and they pulled the same code and told me the thermostat was not working properly. I puchased a new thermostat from the dealership and replaced the aftermarket one. But again no luck, still have the check engine light. Does any one know what else I need to replace or how to clear the check engine light? My tags are expired and it won't pass emissions with the check engine light on. Quote Link to comment Share on other sites More sharing options...
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