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Home >> Mazda >> 1998 >> B2500 SX, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Introduction >> Additional System Functions >> Drive Cycles >> Misfire Monitor Repair Verification Drive Cycle
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Misfire Monitor Repair Verification Drive Cycle

  1. On models with Fuel Level Input (FLI) circuit to PCM terminal No. 12, check fuel gauge and FLI PID value. Misfire monitor can only be tested if fuel gauge reads more than 1/4 full or FLI PID value is more than 15 percent.
  2. On all models, start engine. Drive vehicle to a location where vehicle speeds can reach 55-60 MPH and then coast down to 40 MPH without traffic interference. Accelerate at wide open throttle to allow vehicle to shift at red line (if equipped with a tachometer).
  3. Immediately return to normal speed limits. Accelerate vehicle speed to 60 MPH for 30 seconds. Take foot off accelerator and coast down to 40 MPH. Stop vehicle and repeat QUICK TEST  .
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