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  1. ODB2 ScanTool question CAT related...

    Problems and Troubleshooting
    I was getting repeated P0420 codes, I asked the dealer to confirm the diagnosis, dealer told me I needed the front CAT. Having no income right now, I got a reman from smithcat.com and put it in, reset the codes, ran the "idle learn" procedure. The P0420 came back after about 30 miles. Just to be...
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