Thread: Potentiometer.

Que?
Regards PhilipA

Assuming the Throttle Position Sensor(TPS)?

Or just any potentiometer?

Aha !
And I was thinking of one added to the dash lights or aircon.
A Nanocom has a reading of the 2 or 3voltages which must add to 5 volts for a 2 channel and add to 5 volts and have 5 volts on the third AFAIR.
Regards PhilipA

Originally Posted by PhilipA

Aha !
And I was thinking of one added to the dash lights or aircon.
A Nanocom has a reading of the 2 or 3voltages which must add to 5 volts for a 2 channel and add to 5 volts and have 5 volts on the third AFAIR.
Regards PhilipA

Yes the throttle potentiometer, can you give me a layman's explanation, please, Philip?
I have a Nanocom but it is only a very expensive temp gauge, as it came with no instructions.

potentiometer.jpg

Originally Posted by V8Ian

...
I have a Nanocom but it is only a very expensive temp gauge, as it came with no instructions.

IIRC it's a TD5?

So from the main page, head into TD5 Engine->Inputs Fuelling->Hit the right scroll arrow one page, you see Accel values.
The V values you see on the far right are the voltages.

No expert here, but from memory again like Philip said, if two or three track .. I thin the process is that as one value goes down(or up) the other does the opposite.

eg. say one goes from 2->3 volts, the second track will show 3->2 volts.
Total voltage is at the bottom.

Thanks Arthur, yes it's a late model TD5, so assuming a three wire jobby.

Hi, important readings are accel way 1 and 2, a well working TPS should do way 1 around 1.6V at idle(+/- 0.2), way 2 = supply(around 5V) - way 1 and as you push the throttle way 1 increases and way 2 decreases by maintaining the sum way 1 + 2 = supply. Way 3 is for fine tuning and it has no standard path but closer to way 2 most of the time