throttle pedal sensor wire

[kpark312]

Can anyone tell me where the throttle pedal sensor wire is please? I've fitted a dump valve just need to wire it up, cheers

 

[Davren]

What car?

Which wire?

 

[kpark312]

Sorry it's a punto 1.9 multijet, I'm looking for tps wire

 

[Davren]

There will be at least 4 wires going from the top of the accelerator pedal to the engine management ECU.
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[kpark312]

Yes I've seen them mate, but which one is it?

 

[Davren]

Yes I've seen them mate, but which one is it?

All of them.
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[kpark312]

Okay,so will it make no odds as to which I connect the dump valve to?

 

[Davren]

Okay,so will it make no odds as to which I connect the dump valve to?

Can't imagine why you would need to connect a dump valve to the accelerator pedal circuitry.

The pedal sensor comprises of 2 variable potentiometers (primary and safety backup). Each are supplied with a reference voltage (probably 5 volts) and earth from the engine management ECU, and have outputs that vary between 0 volts and maximum (probably 5 volts) depending on pedal position.

What type of signal does your additional circuitry expect to see?

Connecting any additional circuitry to the output(s) of the pedal is likely to interfere with the signal to the EM ECU.
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[kpark312]

I think that is what activates the dump valve once the throttle is closed