Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Lexus ES 350 BaseFACTORY OEM SERVICE PROCEDURE
Engine Control System (2GR-FKS) - Diagnostic Codes (04 Of 10)
- SFI System
- DTC P0171-00: System Too Lean Bank 1; DTC P0172-00: System Too Rich Bank 1; DTC P0174-00: System Too Lean Bank 2; DTC P0175-00: System Too Rich Bank 2; DTC P1170-00: Fuel Performance/Port Injector; DTC P117B-00: Fuel Performance/Direct Injector [06/2018 - 08/2021]
- DTC P0171-00: System Too Lean Bank 1; DTC P0172-00: System Too Rich Bank 1; DTC P0174-00: System Too Lean Bank 2; DTC P0175-00: System Too Rich Bank 2; DTC P1170-00: Fuel Performance/Port Injector; DTC P117B-00: Fuel Performance/Direct Injector [08/2021 - ]
- DTC P0190-11: Fuel Rail Pressure Sensor "A" Circuit Short to Ground [06/2018 - 08/2021]
- DTC P0190-11: Fuel Rail Pressure Sensor "A" Circuit Short to Ground [08/2021 - ]
- DTC P0190-15: Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open [06/2018 - 08/2021]
- DTC P0190-15: Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open [08/2021 - ]
- DTC P0190-2A: Fuel Rail Pressure Sensor "A" Signal Stuck in Range; DTC P0190-64: Fuel Rail Pressure Sensor "A" Signal Plausibility Failure [06/2018 - 08/2021]
- DTC P0190-2A: Fuel Rail Pressure Sensor "A" Signal Stuck in Range; DTC P0190-64: Fuel Rail Pressure Sensor "A" Signal Plausibility Failure [08/2021 - ]
- DTC P0201-13: Cylinder 1 Injector "A" Circuit Open; DTC P0202-13: Cylinder 2 Injector "A" Circuit Open; DTC P0203-13: Cylinder 3 Injector "A" Circuit Open; DTC P0204-13: Cylinder 4 Injector "A" Circuit Open; DTC P0205-13: Cylinder 5 Injector "A" Circuit Open; DTC P0206-13: Cylinder 6 Injector "A" Circuit Open; DTC P062D-13: Fuel Injector Driver Circuit Performance Bank 1 Circuit Open [06/2018 - 08/2021]
- DTC P0201-13: Cylinder 1 Injector "A" Circuit Open; DTC P0202-13: Cylinder 2 Injector "A" Circuit Open; DTC P0203-13: Cylinder 3 Injector "A" Circuit Open; DTC P0204-13: Cylinder 4 Injector "A" Circuit Open; DTC P0205-13: Cylinder 5 Injector "A" Circuit Open; DTC P0206-13: Cylinder 6 Injector "A" Circuit Open; DTC P062D-13: Fuel Injector Driver Circuit Performance Bank 1 Circuit Open [08/2021 - ]
- DTC P0220-11: Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Ground [06/2018 - 08/2021]
- DTC P0220-11: Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Ground [08/2021 - ]
- DTC P0220-15: Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open [06/2018 - 08/2021]
- DTC P0220-15: Throttle/Pedal Position Sensor/Switch "B" Circuit Short to Battery or Open [08/2021 - ]
- DTC P0300-00: Random/Multiple Cylinder Misfire Detected; DTC P0300-27: Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold; DTC P0300-85: Random / Multiple Cylinder Misfire Detected (Over Temperature) Signal Above Allowable Range; DTC P0301-00: Cylinder 1 Misfire Detected; DTC P0302-00: Cylinder 2 Misfire Detected; DTC P0303-00: Cylinder 3 Misfire Detected; DTC P0304-00: Cylinder 4 Misfire Detected; DTC P0305-00: Cylinder 5 Misfire Detected; DTC P0306-00: Cylinder 6 Misfire Detected [06/2018 - 08/2021]
- DTC P0300-00: Random/Multiple Cylinder Misfire Detected; DTC P0300-27: Random/Multiple Cylinder Misfire Detected (Emission) Signal Rate of Change Above Threshold; DTC P0300-85: Random / Multiple Cylinder Misfire Detected (Over Temperature) Signal Above Allowable Range; DTC P0301-00: Cylinder 1 Misfire Detected; DTC P0302-00: Cylinder 2 Misfire Detected; DTC P0303-00: Cylinder 3 Misfire Detected; DTC P0304-00: Cylinder 4 Misfire Detected; DTC P0305-00: Cylinder 5 Misfire Detected; DTC P0306-00: Cylinder 6 Misfire Detected [08/2021 - ]
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.