Electronic Computer Unit
Unit which is installed on 1970 R16 models with automatic transmission uses a green junction plug and completes circuit to solenoid valve in order to obtain accelerated idle. Unit which is installed on 1971-72 R16 models with automatic transmission uses a blue junction plug and grounds solenoid valve to obtain accelerated idle. If function is not normal, unit must be replaced.
NOTE:
1970 unit (green plug) is not interchangeable with 1971-72 unit (blue plug).