Misfire Monitor Specifications

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Misfire Monitor Operation: DTCs P0300 to P0310 (general and specific cylinder misfire), P1309 (no cam/crank synchronization, AICE chip malfunction), P1336 (no cam/crank synchronization), P0606 (AICE chip malfunction), P0315 (unable to learn profile), P0316 (misfire during first 1,000 revs after start-up). The Monitor execution is Continuous, misfire rate calculated every 200 or 1000 revs. The Monitor does not have a specific sequence. The Sensors CKP and CMP have to be OK to run the monitor. The Monitoring Duration is the Entire driving cycle (see disablement conditions below)

Typical misfire monitor entry conditions: Entry condition Minimum Maximum Time since engine start-up is 0 seconds, Engine Coolant Temperature is 20 to 250 degrees F, RPM Range is (Full-Range Misfire certified, with 2 rev delay) 2 revs after exceeding 150 rpm below drive idle rpm to redline on tach or fuel cutoff, Profile correction factors learned in KAM are "Yes", and Fuel tank level 15%.

Typical misfire temporary disablement conditions: Temporary disablement conditions: Closed throttle decel (negative torque, engine being driven), Fuel shut-off due to vehicle-speed limiting or engine-rpm limiting mode, and a High rate of change of torque (heavy throttle tip-in or tip out)

The Profile Learning operation includes: DTCs: P0315 - unable to learn profile in three 60 to 40 mph decels P1309 - AICE chip communication failure, Monitor Execution is once per KAM reset, The Monitor Sequence: Profile must be learned before misfire monitor is active, Sensors required to be OK: CKP, CMP, no AICE communication errors, CKP/CMP in synch, The Monitoring Duration; 10 cumulative seconds in conditions (a maximum of three 60-40 mph defueled decels)

Typical profile learning entry conditions: Entry conditions from Minimum to Maximum: Engine in decel-fuel cutout mode for 4 engine cycles, the Brakes are not applied, the Engine RPM is 1300 to 3700 rpm, the Change in is less than RPM 600, the Vehicle Speed is 30 to 75 mph, and the Learning tolerance is 1%.