4s-fe Ecu Pinout: Free

Controls the ground side of the fuel injectors (usually batch fired). Ignition Timing Signal sent from the ECU to the igniter to trigger a spark. IGF Ignition Feedback

Do not start replacing sensors randomly. Use a (digital) and a back-probe kit (paperclips work in a pinch). 4s-fe ecu pinout

Connect an oscilloscope or a multimeter set to AC voltage across NE and G1 . Crank the engine. If there is no pulse generation, the distributor pickup coil is dead or the wiring is open. Controls the ground side of the fuel injectors

Ensure E1 has low resistance to the engine block. 4s-fe ecu pinout