Air Injection Check Valve: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| MPFI | ||||
| Idle Speed Control Check Valve | 0.7 | 0.4 | Includes: Troubleshoot And Replace Each Component. | |
| Main Idle Air Control Check Valve | 0.7 | 0.4 | Includes: Troubleshoot And Replace Each Component. |