I had to help make some variations on the engine harness for the idle Regulate valve. I'd originally planned to work with a two wire bimetallic sort valve, but I will be using a Screw-in design idle Regulate valve. This valve utilizes a stepper motor which allows for better Management https://blacktop20v4age41861.blogrenanda.com/45965511/toyota-4a-ge-no-further-a-mystery