318ti.org forum - View Single Post

Richard Wood · 01-05-2015, 11:28 AM

I have disconnected all engine and transmission wires as part of a conversion to electric but planning on keeping components that can be translated for use in the new form.
With the key in and turned I get the instrument panel lighting up, so all good there.

Looking at the Throttle Position Sensor plug:
If I then connect a multimeter to negative on the battery and positive on each of the three bits of the TPS plug on the harness I get 0V, 1V, and 0.1V
Does that make sense to anyone? Shouldn't I be seeing 5V on one of those? Or does the ECU only deliver that 5V when it senses some other conditions are valid, such as the engine going or something?

Cheers
Richard

01-05-2015, 11:28 AM	#1
Richard Wood Junior Member Join Date: Feb 2013 Location: New Zealand Posts: 15 iTrader: (0) Photo Gallery	TPS sensor plug question I have disconnected all engine and transmission wires as part of a conversion to electric but planning on keeping components that can be translated for use in the new form. With the key in and turned I get the instrument panel lighting up, so all good there. Looking at the Throttle Position Sensor plug: If I then connect a multimeter to negative on the battery and positive on each of the three bits of the TPS plug on the harness I get 0V, 1V, and 0.1V Does that make sense to anyone? Shouldn't I be seeing 5V on one of those? Or does the ECU only deliver that 5V when it senses some other conditions are valid, such as the engine going or something? Cheers Richard