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  1. 2008 Shelby GT500 Kenne Bell supercharger - fail safe mode

    Mustang GT500
    Hi there, I am new on this forum. I am looking for a help. Since I installed a 2.8 KB supercharger with 75 mm throttle body and custom tune car oftem falls to safe mode. DTC codes are P2104 and P2111. Here is what I did : 1) Asked for new tune - still same problem 2) Checked TPS + voltage...
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