2010 Grand Cherokee 3.7 WK Check Engine Light w/p013c code
Was getting P013c code (CEL was on but eventually went out) but still getting code. Replaced all four O2 sensors now getting P0132, P0138, P0152, P0153 codes. 1 month previously I replaced both cat convertors and month before that replaced the muffler. I starting to think possible exhaust leak.
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