Check Engine Light P2270
 

Hello all.

2005 v-10 x

Check engine light on... pulling a p2270 code

02 sensor Bank 1 / Sensor 2 signal stuck lean

Where exactly is this sensor on the exhaust?

the same thing is going on mine,haven't figured out what o2 it is.
did you get yours fixed?
thanks
pete

Yes, I did fix it. The 2005 V-10 has 3 Ox sensors. There is one on each side of the Y pipe coming off the engine, and the Bank 2 sensor 2 is on the exhaust right behind the Cat converter. It is on the top. Very easy to change.... I hit it with PB Blaster the night before..... then again about 1 hour before removing. You can buy a special socket to remove it, but I just unplugged it from the harness, cut the 4 wires off, and used a 7/8 in socket on a 1/2 drive to remove. Put the new on in with an open end wrench, plugged in harness, and was finished. It will take a couple of run - cooldown cycles for the Check engine light to go out. Purchased the sensor at Advance auto. $63 I believe. Very easy.

Good luck.