wiscogtlimited Posted July 5, 2010 Share Posted July 5, 2010 I had a CEL come on a few days ago and I took it to autozone and it had the following trouble codes: P0113 and P1133 I cleared the codes and the CEL came on immediately. My car now idles like crap (low) but otherwise runs great. No misfires....no overheating..... I have done some research and I suspect a bad air charge sensor or a bad front o2 sensor. The problem is that here in Wisconsin we have emissions testing and my car is due by the end of july.....perfect timing. Any similar experiences or advice would be appreciated. Thanks. Link to comment Share on other sites More sharing options...
Osei Posted July 7, 2010 Share Posted July 7, 2010 The 0133 says upstream oxygen sensor circuit, slow response. Will have to google the other to find out what it is. don't know what this tells you, but there it is. O. Link to comment Share on other sites More sharing options...
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