Section 23 (Engine Control System - Diagnostic Codes (P0171-P0190))
WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.
- SFI System
- DTC P0171-00: System Too Lean Bank 1; DTC P0172-00: System Too Rich Bank 1; DTC P1170-00: Fuel Performance/Port Injector; DTC P117B-00: Fuel Performance/Direct Injector [03/2022 - 03/2023]
- DTC P0171-00: System Too Lean Bank 1; DTC P0172-00: System Too Rich Bank 1; DTC P1170-00: Fuel Performance/Port Injector; DTC P117B-00: Fuel Performance/Direct Injector [03/2023 - ]
- DTC P0190-11: Fuel Rail Pressure Sensor "A" Circuit Short to Ground [11/2021 - 03/2022]
- DTC P0190-11: Fuel Rail Pressure Sensor "A" Circuit Short to Ground [03/2022 - 03/2023]
- DTC P0190-11: Fuel Rail Pressure Sensor "A" Circuit Short to Ground [03/2023 - ]
- DTC P0190-15: Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open [11/2021 - 03/2022]
- DTC P0190-15: Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open [03/2022 - 03/2023]
- DTC P0190-15: Fuel Rail Pressure Sensor "A" Circuit Short to Battery or Open [03/2023 - ]
- DTC P0190-2A: Fuel Rail Pressure Sensor "A" Signal Stuck in Range; DTC P0190-64: Fuel Rail Pressure Sensor "A" Signal Plausibility Failure [11/2021 - 03/2022]
- DTC P0190-2A: Fuel Rail Pressure Sensor "A" Signal Stuck in Range; DTC P0190-64: Fuel Rail Pressure Sensor "A" Signal Plausibility Failure [03/2022 - 03/2023]
- DTC P0190-2A: Fuel Rail Pressure Sensor "A" Signal Stuck in Range; DTC P0190-64: Fuel Rail Pressure Sensor "A" Signal Plausibility Failure [03/2023 - ]