O2 codes!

**Supersport0126** · 11-13-2012, 06:02 PM

Check engine light came on the other day and I got a po151 bank 2 sensor 1 low voltage .(rears deleted!). Had a slow response code a few months ago but just cleared it and been fine until now! Car has kooks Lts with their TDs. Bought the sensors (acdelco) new when I put the exhaust on but ran the old sensors with the new exhaust for a little bit. Car is also running a little rough and air/fuel gauge is of course fluctuating abnormally. Since I have the extensions, I was wondering if I should try running the Bosch 13111 sensors? Found them on ebay for about $33 a piece. If I do that, do I have to have the car re-tuned?(Frost). My connections and routing seem good. I used the search for this topic,but just wanted to get some fresh input about it. thanks a lot very much for the help guys!

**pajeff02** · 11-14-2012, 03:27 AM

Bosch 13111 sensors are the way to go, especially with LT's. That's a darn good price too.

**Supersport0126** · 11-14-2012, 03:50 AM

Guess that's what ill do then. Hope that fixes it!

**Supersport0126** · 11-14-2012, 04:03 AM

Should I get this retuned? Or will I be ok?

**2002ssslp** · 11-14-2012, 04:06 AM

Denso also makes a good O2 sensor and they last alot longer.

**Knight** · 11-14-2012, 10:03 AM

You should not need a retune. The sensors will work the same as the stock ones.

**Supersport0126** · 11-14-2012, 02:24 PM

Already got the bosch coming.hope they work out, cause the car runs bad right away and the Voltage for the o2 on my scan tool is dropping very low. Guess ill find ouy when I plug em in!