Are O2 Sensors MTX/ATX the same?

[Northwestvoodoo]

I have a set I bought for my ATX awhile ago and want to install them in a MTX. The part numbers are different so I thought I would ask.

 

[SeanMc]

I believe the sensor itself is the same, but the pigtails on the ATX may be a bit longer.

 

[Northwestvoodoo]

I pulled out the old ones and the plugs are different. The MTX has 3 wires and the ATX has 4. Is there any magic I can use to retrofit these plug end to work? Do I need the extra wire?

 

[Northwestvoodoo]

Answer to my question if anybody else was wondering:

The difference is the heater circuit.

The three wire systems use the body of the sensor for ground and have the heater power switched to it when required.

The 4-wire sensors have both a hot and a return line for the heater. The hot wire is usually always hot in RUN and the low side of the heater is switched by the PCM.

They are not interchangeble.

Steve

 

[Phoenix]

I knew it but came in late.

its a positive on the 3 and 4 wires. They wont fit.

 

[Northwestvoodoo]

I just cleaned up the old ones and reinstalled. Off the the dealership to try and trade the atx for mtx ...... without the bill.

 

[Phoenix]

I just cleaned up the old ones and reinstalled. Off the the dealership to try and trade the atx for mtx ...... without the bill.

If ever you want new ones , try rockauto.com , I think they run for 30$ each.

Even with the shipping to canada its alot cheaper. We are getting screwed over here.