Idle Air Control Valve
The Idle air control valve, or IACV regulates the car's idle based on the coolant temperature. Target idle settings vs.
Adapted from pgmfi.org wiki
The Idle air control valve, or IACV regulates the car's idle based on the coolant temperature.
- Target idle settings vs. ECT:
Note: this is ECU controlled and can be altered.
Troubleshooting & Repair
If you are experiencing a persistent Check Engine Light Code 14 or a very low/erratic idle, your ECU's internal driver circuit may be blown. See the IACV Circuit Fix - R58 & R59 guide for diagnostic steps and component repair details.
Credits and source
Source Adapted from Idle Air Control Valve on pgmfi.org wiki. Licensed under CC BY-NC-SA 1.0.