Idle Air Control (IAC) Signal Test Lights - GM '82/91
DESCRIPTION:
Idle too fast or too slow on your GM TBI or PFI engines? These toolSAE LEDs tell you if the computer is giving the wrong commands to the IAC motor. Fits harness connectors without damage. Complete instructions included.
Configuration: Pins in Square
Application '82 -'91 GM TBI & PFI
