Typical Malfunction Thresholds
| Purge-cut | Executing |
| Either of the following conditions 1 or 2 is met | - |
| 1. Average between short-term fuel trim and long-term fuel trim | 35% or more (varies with engine coolant temperature) |
| 2. Average between short-term fuel trim and long-term fuel trim | -35% or less (varies with engine coolant temperature) |