Typical Malfunction Thresholds
P0400
| Manifold pressure change* | Less than 1.72 kPa [0.25 psi] (at engine speed 1000 rpm) |
P0401 (EXCEPT MEXICO MODELS)
| Manifold pressure change* | Less than 1.72 kPa [0.25 psi] (at engine speed 1000 rpm) |
| Manifold pressure | Less than 41.5 kPa [6.02 psi] |
P0402 (EXCEPT MEXICO MODELS)
| Manifold pressure change* | Less than 1.72 kPa [0.25 psi] (at engine speed 1000 rpm) |
| Manifold pressure | 41.5 kPa [6.02 psi] or more |
| *: Calculated by EGR valve open and close | - |