Processes signals from the Crankshaft Position (NE) sensor, Camshaft Position (TDC) sensor, and fuel rail pressure sensor.
A 3-wire circuit (5V reference, signal, and ground) that monitors high-pressure fuel levels. isuzu 4hl1-1 ecu pinout
The ECU ground-side switches this relay to power up the rest of the engine sensors. Processes signals from the Crankshaft Position (NE) sensor,
The ECU uses these pins to determine engine timing and fuel requirements. Camshaft Position (TDC) sensor
Signals the ECU to wake up when the key is turned.