DTC P0306 Acura

Description

The execution time is once per driving cycle and the duration time is 200 revolutions for Type 1 and 1,000 revolutions for Type 2. Conditions for illuminating the MIL Type 1 and Type 2. Misfire Type 1 (Severe) Per 200 revolutions 27-90 times. If a type 1 misfire (catalyst damaging) occurs once, the MIL blinks once per second, a Temporary 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 DTC is stored. After a type 1 misfire has been detected during two drive cycles, the MIL comes on and stays on beginning with the third drive cycle, unless the Temporary 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 recurs during the next (second) drive cycle, the MIL comes on and the DTC and the freeze frame data are stored. Misfire Type 2 (Light) Per 1,000 revolutions 55 times. If a type 2 misfire (emission-related but not severe enough to immediately damage the catalyst) occurs, a Temporary DTC is stored, but the MIL does come on or blink. If a type 2 misfire occurs during a second drive cycle, the MIL comes on and stays on unless the Temporary DTC has been cleared by the PCM. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot