Typical Malfunction Thresholds
WARNING: This page is about a different car, the 2024 Lexus TX 550h+. 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 1000 rpm) |
P0401
| Manifold pressure change* | Less than 1.72 kPa [0.25 psi] (at engine speed 1000 rpm) |
| Manifold pressure | Less than 54 kPa [7.83 psi] |
P0402
| Manifold pressure change* | Less than 1.72 kPa [0.25 psi] (at engine speed 1000 rpm) |
| Manifold pressure | 54 kPa [7.83 psi] or more |
| *: Calculated by EGR valve open and close | - |