I'd to make some adjustments on the engine harness to the idle control valve. I'd initially planned to work with a two wire bimetallic sort valve, but I is going to be using a Screw-in type idle Handle valve. This valve utilizes a stepper motor which allows for higher control https://4ageforsale25421.ttblogs.com/19091521/facts-about-4age-20v-itb-revealed