Monitor Strategy

Total OBD & ECU Auto Diagnostics

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Related DTCs

P0300: Multiple cylinder misfire P0301: Cylinder 1 misfire P0302: Cylinder 2 misfire P0303: Cylinder 3 misfire P0304: Cylinder 4 misfire

Required Sensors/Components (Main)

Crankshaft position sensor and Camshaft position sensor

Required Sensors/Components (Related)

Engine coolant temperature and intake air temperature sensors and Mass air flow meter

Frequency of Operation

Continuous

Duration

1,000 to 4,000 crankshaft revolutions: Emission related misfire 200 to 600 crankshaft revolutions: Catalyst damaged misfire

MIL Operation

2 driving cycles: Emission related misfire

MIL flashes immediately: Catalyst damaged misfire

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

Misfire:

Monitor runs whenever following DTCs not present

P0100 - P0103 (MAF meter)

P0110 - P0113 (IAT sensor)

P0115 - P0118 (ECT sensor)

P0120 - P0223, P2135 (TP sensor)

P0125 (Insufficient ECT for Closed Loop)

P0327, P0328 (Knock sensor)

P0335 (CKP sensor)

P0340 (CMP sensor)

P0500 (VSS)

Battery voltage

8 V or more

VVT system

Not operated by scan tool

Engine RPM

400 to 6,400 rpm

Either of following conditions (a) or (b) met

-

(a) ECT at engine start

More than -7°C (19°F)

(b) ECT

More than 20°C (68°F)

Fuel cut

OFF

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