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Misfire Monitor Repair Verification Drive Cycle

  1. For applications with the Fuel Level Input (FLI) circuit to the PCM (pin 12), check the fuel gauge and the FLI PID on the scan tool (if available). The misfire monitor can only be tested if the fuel gauge reads above one quarter full or the FLI PID is above 15% (percentage fuel tank fill).
  2. Start the engine and drive the vehicle to a location where speeds can reach 55 to 60 MPH (88 to 97 km/h) and coast down to 40 MPH (64 km/h) without traffic interference.
  3. Accelerate at wide-open throttle to allow vehicle to shift at red-line (if equipped with a tachometer). Immediately return to normal speed limits.
  4. Perform the following drive procedure 3 consecutive times:
    • Accelerate on highway to 60 MPH (97 km/h). Maintain speed for 30 seconds.
    • Coast down with foot off the accelerator pedal from 60 MPH to 40 MPH (97 km/h to 64 km/h).
  5. Repeat quick test. See QUICK TEST .
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