!!!!This is absolutely necessary after performing a performance modification!!!!
The easiest way to reset the engine computer (PCM, or Powertrain Control Module) is to pull the #4 and #11 fuses from the power distribution box under the hood. It is located between the battery and the fenderwell. Leave the fuses out for 1-2 minutes to clear the KAM (Keep Alive Memory) and the computer will relearn all its settings. Or you can pull off the negitave batt. terminal, but takes longer to clear the memory.