HERE'S WHAT HAPPENS WHEN YOU PULL #2 FUSE (older Challengers) Pulling Fuse F2 resets: All PCM DTCs erased. All OBD2 monitor results erased. All "long term fuel trim adaptive" values reset to Zero. Long term Fuel Adaptive trim will now start over the next 100 engine start cycles. Cycle the headlights as described above will create a Short Term Fuel Adaptive trim table over the next 50 start cycles. Driver Adaptive? Driver Adaptive and related fuel table trim is probably the least...
General Challenger
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