Idle Air Control Adapter Harness - GM

Wiring Solutions - Tick Performance
Current Stock:

Temporarily Out of Stock, Please Call to Order

The plug-and-play Tick Performance IAC to EFI Adapter allows you to easily adapter to an early style GM Idle Air Control Valve. This is a common requirement for aftermarket EFI systems and 4bbl throttle bodies. This adapter harness converts your IAC to the older TPI style Thread-In IAC with the square 4-pin connector.

The harness plugs into the following IACs:

  • FAST, TCI #307014
  • HALLTECH #HT-020302
  • AC Delco #217-437
  • Holley #543-2


  • Comes as shown
  • 8in Length Harness
  • Plug-and-Play ready

Please Note:
GM-pinned IAC valves are pinned as picture shown. This was used from 1992 to current. Chrysler and other "Universal EFI or MultiPort EFI" harnesses may use the same connector but be pinned differently. Please consult your wiring diagrams to see what pinout you have.

Item #TPIAC42 is for Chrysler, Hemi, and other Universal EFI harnesses.
Item #TPIAC41 is for GM harnesses.