Conditions for setting the DTC

Misfire Type 1:

• If a type 1 misfire (catalyst damaging) occurs once, the MIL blinks once per second, a Pending DTC is stored, and the high rpm fuel injection stop system activates. The fuel injection stops, at high rpm only, on the cylinder that has the highest misfire counts. The MIL continues to blink and the fuel injection stays off at high rpm, until the drive is completed.
• If a type 1 misfire occurs during a second drive cycle, the MIL and fuel injection behave the same and a Confirmed DTC is stored.
• After a type 1 misfire has been detected during two drive cycles, the MIL comes on and stays on solid beginning with the third drive cycle, unless the Pending DTC has been cleared by the PCM***. Even if the MIL is on, it will start blinking if a type 1 misfire occurs.
• If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.

Misfire Type 2:

If a type 2 misfire (emission-related but not severe enough to immediately damage the catalyst) occurs, a Pending DTC is stored, but the MIL does not come on or blink. If a type 2 misfire occurs during a second drive cycle, the MIL comes on and stays on unless the Pending DTC has been cleared by the PCM***.

*** The Pending DTC is erased if either of these conditions is met:

• The vehicle is operated at least once under the same driving conditions as the first misfire detection, and no misfire is detected.
• 80 drive cycles, regardless of driving conditions, are completed with no misfire detected.