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Home >> Lexus >> 2009 >> ES 350 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control (SFI) System (Diagnostic Codes & Circuit Tests) >> SFI System >> DTC P050B: Cold Start Ignition Timing Performance >> Monitor Strategy
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Monitor Strategy

Monitor runs whenever following DTCs are not present P0010, P0020 (OCV bank 1, 2)
P0011, P0021 (VVT system bank 1, 2 - advance)
P0012, P0022 (VVT system bank 1, 2 - retard)
P0013, P0023 (Exhaust OCV bank 1, 2)
P0014, P0024 (Exhaust VVT system bank 1, 2 - advance)
P0015, P0025 (Exhaust VVT system bank 1, 2 - retard)
P0016, P0018 (VVT system bank 1, 2 - misalignment)
P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment)
P0102, P0103 (MAF meter)
P0115, P0117, P0118 (ECT sensor)
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (TP sensor)
P0125 (Insufficient ECT for closed loop)
P0171, P0172, P0174, P0175 (Fuel system)
P0301, P0302, P0303, P0304, P0305, P0306 (Misfire)
P0335 (CKP sensor)
P0340, P0342, P0343, P0345, P0347, P0348 (VVT sensor)
P0351, P0352, P0353, P0354, P0355, P0356 (Igniter)
P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust VVT sensor)
P0500 (Vehicle speed sensor)
P2195, P2196, P2197, P2198 (A/F sensor - rationality)
P2237, P2240 (A/F sensor - open)
P2238, P2241, P2252, P2255 (A/F sensor - low impedance)
P2239, P2242, P2253, P2256 (A/F sensor - high impedance)
P2A00, P2A03 (A/F sensor - slow response)
Related DTCs P050B: Idle ignition timing problem at cold
Required Sensors / Components (Main) Mass air flow meter
Required Sensors / Components (Related) Engine Coolant Temperature (ECT) sensor, Throttle position sensor, Vehicle speed sensor
Frequency of Operation Once per driving cycle
Duration 10 seconds
MIL Operation 2 driving cycles
Sequence of Operation None