EGR Operating Voltage

[Tao]

Took a look through the EGR posts but I couldnt find what I was looking for. My mechanic has an EGR valve that matches the code on the car, its a 1 volt, can anyone tell me whether the operating voltage for the SHO EGR is 1 or 1.5 volts?

 

[naval-avi8or]

Took a look through the EGR posts but I couldnt find what I was looking for. My mechanic has an EGR valve that matches the code on the car, its a 1 volt, can anyone tell me whether the operating voltage for the SHO EGR is 1 or 1.5 volts?

The EGR valve on the SHO doesn't require any voltage. The DPFE and the EGR vacuum reg are the EGR related components that due require votlage.

 

[projectSHO89]

FWIW, EGR valves seldom fail. Many of them get replaced because the mechanic is just guessing based on codes. Complete waste of money, usually.

Make certain the mechanic knows what he's doing and that he has properly diagnosed your specific fault. Since he's already blown the valve description (unless, perhaps, you misunderstood or misreported what he said), I'd be concerned about his technical competence in understanding the system on your car.

Steve

 

[Tao]

Ok perhaps I didnt explain properly, let me try a little better, im trying to figure out the voltage on the unit to the rear right of the intake manifold on the back, it has those two little rubber hoses going to the underside of it and is mounted with 2 bolts, is that the vacuum reg or the DPFE and whats the voltage the unit takes?

 

[Rockledge]

That's the DPFE sensor. Ford DPFE sensors will have either a 0.55 voltage offset or 1.0 voltage offset. I'm pretty sure the SHO's DPFE is the more common 1.0v.