Isuzu 4hl1 Ecu Pinout -

: Monitors pressure in the common rail.

Elias grabbed his multimeter. He set it to DC Voltage. He grounded the black probe to the negative battery terminal. isuzu 4hl1 ecu pinout

He looked at the pinout sheet again. He needed to check the Crankshaft Position Sensor. If the ECU didn't know the engine was spinning, it wouldn't fire the injectors. The sensor wire ran from the bell housing all the way to the ECU. : Monitors pressure in the common rail