Engine Temperature Sensors

[Peter Hills]

Hi Guys,

I’m looking into fitting the American throttle body injection system to my car. I understand that it needs a engine coolant signal. Does anyone know whether the redundant temperature sensor position on the right hand head would be suitable for this purpose? It was taken out of use by a Triumph service instruction in early 1971, apparently because it was unreliable. Later cars didn’t have it fitted.

Alternatively, the current temperature gauge sender – in the corresponding position on the left hand head – is a device which varies its resistance as temperature changes. Does anyone know whether this could be used for both temperature gauge and fuel injection temperature sensing?

Regards

Peter

[KOY 23]

imported post

Hi Peter

I have fitted my EWP sensor in the right hand head water housing. It works fine. The switch was deleted as it was unreliable not its position. I would think it unlikley that the Efi and gauge would need the same resistance characteristics. Please keep us posted.

John.

[les M]

imported post

Peter

I am running a EFI system on mine and I have a separate temp sensor for the ECU I don't think that you will be able to use the original single wire for your ECU, as far as I am aware ECU's require a 2 wire sensor. The position you are thinking of should be OK, my extra sensor is fitted next tomy thermostate housing and only shows a difference of 2 deg C to the rear of the L/H head sensor.

Best of luck

Les.