kinggrimwood Posted August 13, 2006 Share Posted August 13, 2006 1992 SC4 pulled a code 25, which i think is an air/fuel ratio error. Is there anyway to narrow down what is the problem? I read it probably is an o2 sensor, but how can i know which one to replace? Any help would be appreciated. Quote Link to comment Share on other sites More sharing options...
lexus082 Posted August 14, 2006 Share Posted August 14, 2006 This may help a little bit, 25 Air-Fuel Ratio Lean. Can't give any more info than that sorry. So I guess whatever could cause it to be lean I would go from there... Quote Link to comment Share on other sites More sharing options...
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