Typical Malfunction Thresholds
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.
P0400
| Manifold pressure change* | Less than 1.72 kPa (0.25 psi) (at engine speed 1200 rpm) |
P0401
| Manifold pressure change* | Less than 1.72 kPa (0.25 psi) (at engine speed 1200 rpm) |
| Manifold pressure | Less than 41.8 kPa (6.06 psi) |
P0402
| Manifold pressure change* | Less than 1.72 kPa (0.25 psi) (at engine speed 1200 rpm) |
| Manifold pressure | 41.8 kPa (6.06 psi) or more |
| *: Calculated by EGR valve open and close | - |