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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 178 (Engine Control System (2GR-FSE) - DTC P0171 - P050A) >> 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

WARNING: This page is about a different car, the 2008 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

Misfire: 

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs are 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 - P0333 (Knock sensor)
P0335 (CKP sensor)
P0340 (VVT sensor)
P0500 (VSS)
Battery voltage 8 V or more
VVT system Not operated by scan tool
Engine RPM 450 to 6,700 rpm
Either of following conditions (a) or (b) is met: -
(a) ECT at engine start More than-7°C (19°F)
(b) ECT More than 20°C (68°F)
Fuel cut OFF

Monitor period of emission-related-misfire: 

TYPICAL ENABLING CONDITIONS

First 1000 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): 

TYPICAL ENABLING CONDITIONS

All of the following conditions 1, 2 and 3 are met: Crankshaft 200 revolutions
Except above (MIL blinks immediately) Crankshaft 200 revolutions x 3
1. Driving cycles 1st
2. Check mode OFF
3. Engine RPM Less than 2500 rpm
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