Throttle pedal issue - random losses of power while pulling away

I don't remeber seeing a lonely white wire at the ECU like that before.

Not wanting to hijack the thread, but wanted to know how to check if the pedal is working outside the car.

I wondered if I put 5v trough pins 2 and 4, and check the output on pins 1 and 3 I could check expected voltages coming out of it. That should work if it was a simple potentiometer, but with hall I dont know.

I tried that approach and voltage is always constant in pins 1 and 3, it never varies when I press the pedal. I also could not find what would be the expected voltages on the pedal.

Thanks!!!

Update

After trying all the ideas on here and other places I had to admit defeat and get an auto Electrician involved so after £375 and a new battery the car is up and running again had a new ecu kit and an issue with the fan running all the time has also been cured

Bobcatatwork wrote:Update

After trying all the ideas on here and other places I had to admit defeat and get an auto Electrician involved so after £375 and a new battery the car is up and running again had a new ecu kit and an issue with the fan running all the time has also been cured

Thanks for the update.

nesc76 wrote:I wondered if I put 5v trough pins 2 and 4, and check the output on pins 1 and 3 I could check expected voltages coming out of it. That should work if it was a simple potentiometer, but with hall I dont know.

I don't know,sorry.

Just swapping the pedal out with another is enough to cure the TPS faults. Cheap enough to buy here on ebay.