: Injector pulse signals; typically, 4S-FE engines use batch fire injection where pins control pairs of injectors (1 & 3, 2 & 4).
Dedicated ground loop for sensitive sensors to prevent electrical noise. Injector Signals 4s-fe ecu pinout
: Injector pulse signals; typically, 4S-FE engines use batch fire injection where pins control pairs of injectors (1 & 3, 2 & 4).
Dedicated ground loop for sensitive sensors to prevent electrical noise. Injector Signals