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Tim_B4 · 26-11-23, 11:28 AM

I didn't change the original loom out from the ABT 4 cyl that was originally in chassis.

The K-jet that WAS with the engine, wasn't KE-jet, it didn't have/need any connection with the car/ECU. The new EFI ECU is a standalone unit, the doesn't have any communication/overlap with the original ECU in the car.

The EFI ECU has coolant temp, hall sensor, lambda, idle switch and control valve and MAP sensor, so has no part/say in the ignition system.

The mono-motronic control unit is solely responsible for the ignition, and it's no longer giving a signal to the ignition coil, like I said, it has a clear signal from the hall sensor in to it, and all the 3 wires from the hall sensor have continuity with their respective pins in the ECU harness.

I have no idea why it's no longer giving the signal.

26-11-23, 11:28 AM	#7
Tim_B4 Newbie! Join Date: Aug 2021 Location: South Wales Posts: 13	I didn't change the original loom out from the ABT 4 cyl that was originally in chassis. The K-jet that WAS with the engine, wasn't KE-jet, it didn't have/need any connection with the car/ECU. The new EFI ECU is a standalone unit, the doesn't have any communication/overlap with the original ECU in the car. The EFI ECU has coolant temp, hall sensor, lambda, idle switch and control valve and MAP sensor, so has no part/say in the ignition system. The mono-motronic control unit is solely responsible for the ignition, and it's no longer giving a signal to the ignition coil, like I said, it has a clear signal from the hall sensor in to it, and all the 3 wires from the hall sensor have continuity with their respective pins in the ECU harness. I have no idea why it's no longer giving the signal.