DTC Set Conditions

Check Conditions - Engine speed is between 500-6000 RPM. Engine coolant temperature is higher than 14°F (-10°C). Intake air temperature is higher than 14°F (-10°C). Barometric pressure is higher than 11 psi (76 kPa). Adaptive learning is complete for the vane which generates a crankshaft position signal. While the engine is running, excluding gear shifting, deceleration, sudden acceleration/deceleration and A/C compressor switching. The throttle deviation is -0.059V/10 ms to +0.059V/10 ms.

NOTE: Change in the angular acceleration of the crankshaft is used for misfire detection.

Judgement Criteria - Misfire has occurred more frequently than allowed during the last 200 revolutions (when the catalyst temperature is higher than 1,742°F (950°C), or misfire has occurred in 20 or more of the last 1000 revolutions (corresponding to 1.5 times the limit of emission standard).