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  1. L31 2002-2006 Altima
    Good day, and thank you ahead of time for your time and effort! THE PATIENT: Altima, S, 2006, 2.5L THE PROBLEM: The car sometimes has a stuttering start-up. Check engine light on. P0420 CODE. Temp after CAT is significantly lower than the temp before the CAT. WHAT HAS BEEN DONE: I replaced...
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