Egr selonoid

[Sirlevardo]

Hi there.



I have vauxhall Corsa 1 l petrol and measured both wires on Egr selonoid, plugged and unplugged.

Plugged/ unplugged

Feed wire 12V/12V

Signal wire 12V/3.65V



My question is, why do I have voltage in my feed wire? I thought bias voltage was only read on O2 sensor or a knock sensor.

Unfortunately, I don't have the wiring diagrams to take a read at the ECU.



Any thoughts highly appreciated

[Belle427]

I'm not familiar with that egr valve but if it's a 2 wire solenoid then surely it just needs power and ground to operate?