p052a

  1. Herkybc130

    2012 Mustang GT Codes P0012 P0022 P052A P052B P052C

    CEL came on two weeks ago with the above codes displayed. Mustang is bone stock. 62K miles. Had the dealer reflash the stock tune just to ensure nothing else was the culprit. Had them zero out the codes. CEL came back. When I start it cold under 50F, the engine idles fine for 5-7 seconds, then...

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