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Home >> Lexus >> 2006 >> RX 330 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System (3MZ-FE) >> SFI System >> DTC P0300 Random / Multiple Cylinder Misfire Detected: DTC P0301 Cylinder 1 Misfire Detected: DTC P0302 Cylinder 2 Misfire Detected: DTC P0303 Cylinder 3 Misfire Detected: DTC P0304 Cylinder 4 Misfire Detected: DTC P0305 Cylinder 5 Misfire Detected: DTC P0306 Cylinder 6 Misfire Detected >> Typical Enabling Conditions

Typical Enabling Conditions

Misfire: 

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs not present P0100, P0101, P0102, P0103 (MAF sensor), P0110, P0112, P0113 (IAT sensor), P0115, P0116, P0117, P0118 (ECT sensor), P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (TP sensor), P0125 (Insufficient ECT for closed loop), P0327, P0328, P0332, P0333 (Knock sensor), P0335 (CKP sensor), P0340, P0341 (CMP sensor), P0500 (VSS), P0510 (Idle switch)
Battery voltage 8 V or more
Throttle position learning Completed
VVT system No operate by scan tool
Engine RPM 450 to 5,900 rpm
All of the following conditions are met Condition 1, 2 and 3
1. Engine Coolant Temperature (ECT) -10°C (14°F) or more
2. Either of the following conditions is met Condition (a) or (b)
(a) IAT -10°C (14°F) or more
(b) ECT 75°C (167°F) or more
3. Either of the following conditions is met Condition (a) or (b)
(a) ECT at engine start More than -7°C (19.4°F)
(b) ECT More than 20°C (68°F)
Fuel cut OFF

Monitor period of emission-related-misfire: 

MONITOR PERIOD OF EMISSION-RELATED-MISFIRE

First 1,000 revolutions after engine start, or Check Mode Crankshaft 1,000 revolutions
Except above Crankshaft 1,000 revolutions x 4

Monitor period of catalyst-damaged-misfire (MIL blinks): 

MONITOR PERIOD OF CATALYST-DAMAGED-MISFIRE (MIL BLINKS)

All of following conditions 1, 2 and 3 met Crankshaft 200 revolutions x 3
1. Driving cycles 1 set
2. Check mode OFF
3. Engine RPM Less than 3,000 rpm
Except above Crankshaft 200 revolutions x 3