LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2023 >> NX 250 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 88 (Engine Control System - Diagnostic Codes (P11EA-P1422)) >> SFI System >> DTC P1422-00: Evaporative Emission Fuel Tank (Small Leak); DTC P1423-00: Evaporative Emission Fuel Tank (Gross Leak) [11/2021 - 03/2022] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
P1422: SMALL LEAK FROM FUEL TANK

Fuel tank pressure when vacuum introduction for fuel tank was complete Between conditions 1 and 2
Condition 1 Higher than third reference pressure
Condition 2 Lower than [third reference pressure x 0.2]
P1423: GROSS LEAK FROM FUEL TANK

Fuel tank pressure when vacuum introduction for fuel tank was complete Higher than [third reference pressure x 0.2]
scientia non olet · About LEMON Manuals