i have an h reg xr3i efi and have found that the co2 pot is dun and cant find a new one anywhare if anybody could help me find one that would be great .i also herd that if i use a throttle position sensor from the same car it works in the same way but not to sure about this maybee someone with a bit more no how than me could tell me thanks

 

You need to know the resistance, then you can simply pop into maplins etc and buy one, even if you can't get the exact one the nearest resistance would usually be ok.
This can always be mounted remotely(outside the ecu) if needed.
tabetha

 

dus anybody have a rough idea of the resistance ?

 

Is it a separate part? If so is the Sierra DOHC one the same? I have a couple of dead ones here.

 

its the little black box with a screw on the top of it with a 3 prong plug going to it that sits on the passenger side inner wing .i put the meter on it and its not adjusting my mixture so trying to find one thats working or if anyone can tell me the resistance and i will get a replacement potentiometer

 

have a look on ebay under fiesta rs turbo...seen a few on there lately

 

Sounds the same as a Sierra but sadly the Sierra one has only two terminals.