Codes P0174 and P2197 Mustang 2006 - Ford Forums

vili · 07-15-2009, 06:21

Hello, I'm new to the site. I tried to search, but I'm not finding a lot of information about one of the codes I'm getting. My wife bought a 2006 mustang about 4 months ago and it has around 65k miles, it is a V6.

Recently the mustange just came up with System too lean bank 2 and o2 sensor stuck lean bank 2 sensor 1.

Of course I went to advance to pull the codes and he recommended I replace the o2 sensor. I got home and after reading everything it doesn't seem like that would be the problem. I haven't changed it out yet. I know the P0174 code a lot of times people recommend to check the MAF and the hoses for various leaks, but would P2197 be the same thing?

I honestly have no technical knowledge of cars, but I'll try anything. What would be the best way to check the hoses other than physically inspecting...would I have to take it to a mechanic for a smoke test?

Thanks for your help.

fixitnowlt · 07-15-2009, 14:27

They are right about checking for vacuum leaks. I do not know of anywhere specific to look on your vehicle. It is not uncommon for the O2 sensor itself to go bad (Especially on a Ford. I've replaced dozens).

The codes are generally the same. P0xxx is an SAE spec. P2xxx is a generic (SAE) spec.

To read how they work follow the link and scroll down to: HOW AN OXYGEN SENSOR WORKS

http://www.aa1car.com/library/o2sensor.htm