bad o2s?

[austindavis1993]

I'm getting a code 173 and 178 in my 93 mtx, running rough and hardly idling and bad gas mileage bad o2 sensors or?

 

[intimdatr]

Yup.
Your Left bank o2 is dead. If ones dead its time to replace them both!

 

[austindavis1993]

Yup.
Your Left bank o2 is dead. If ones dead its time to replace them both!

Are u sure its my left I would think it'd be the right/rear?

 

[intimdatr]

The codes read out as Right. Must have read it wrong!

http://www.rangerpowersports.com/forum/f327/ford-obdi-codes-164007.html

But either way id replace them both.