Is my Expedition O2 dead?

[Goferrin99]

Ive just put a new Oxycheq O-13 sensor in my Expedition.

24 hours after fitting it reads 10% for ambient air and 45% for pure O2 with the pot centred at 12 oclock. adjusting the pot changes the reading by ~2%

I note the Oxycheq web site lists the O-13 as the correct sensor for an Expedition. However the sensor originally fitted was a D-13 (which I only discovered after openning the unit..d'ohh). Have Oxycheq changed sensors since my unit was manufactured in 1993?

Any advice greatly received.

 

[rongoodman]

I just looked at the sensor in mine and it's an O-13. Sounds like you got a bad one. Can you return it to the seller? They should be good for at least a couple of years.

 

[Goferrin99]

Thanks Ron. However the sensor is putting out 6mV in ambient air which is inline with its specs.

Ill call oxycheq/Patrick and see if the sensor has been changed.