# F150 02 sensor **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [January 26, 2015, 4:47am UTC](https://community.cartalk.com/t/f150-02-sensor/88829 "2015-01-26T04:47:02Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Jacob03](https://avatars.discourse-cdn.com/v4/letter/j/9f8e36/32.png) [@Jacob03](https://community.cartalk.com/u/Jacob03)\ **Post date:** [January 26, 2015, 4:47am UTC](https://community.cartalk.com/t/f150-02-sensor/88829/1 "2015-01-26T04:47:02Z")
Hi, The “service engine soon” light is on. Need help. I got code 0141 on the code reader. The repair manual for my F150 is stating that the code is for bank 1 sensor 2. I want to check the sensor, but I don’t know the location of bank 1 sensor 2. I would like your advice as to the location of the sensor, and what should I check for? Thank you! ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [January 26, 2015, 5:23am UTC](https://community.cartalk.com/t/f150-02-sensor/88829/2 "2015-01-26T05:23:49Z")
O2 sensor bank 1 sensor 2 is the sensor after the catalytic converter on the side of the engine for cylinder 1. Usually when you get heater circuit code for an O2 sensor, the sensor is replaced. Tester ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [January 26, 2015, 5:29am UTC](https://community.cartalk.com/t/f150-02-sensor/88829/3 "2015-01-26T05:29:59Z")
Cylinder 1 is on the right (passenger) side. ---
**Author:** ![markmast](https://avatars.discourse-cdn.com/v4/letter/m/4af34b/32.png) [@markmast](https://community.cartalk.com/u/markmast)\ **Post date:** [January 26, 2015, 5:51am UTC](https://community.cartalk.com/t/f150-02-sensor/88829/4 "2015-01-26T05:51:51Z")
To check the heater portion of the o2 sensor, you must disconnect it from the wiring harness. Usually, the connector has 4 pins. 2 are for the sensor signal and 2 are for the heater. You need to find out which 2 pins are for the heater and measure the resistance with an ohmmeter. Typical values are 5 to 20 ohms. If you are not equipped to do this, I would just visually check the wiring harness for damage and see if you have any blown fuses. Some manufacturers have a fuse in the fuse box just for the o2 heater circuit. If you don’t find anything wrong just replace the sensor. ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [January 26, 2015, 6:13am UTC](https://community.cartalk.com/t/f150-02-sensor/88829/5 "2015-01-26T06:13:51Z")
@Jacob03 No offense intended to anybody, but I wouldn’t bother measuring resistance, if the code is for the oxygen sensor heater circuit Get your multimeter and backprobe adapters. If the heater circuit is getting battery voltage when turning on the ignition, go ahead and replace the sensor If you’re not getting power to the heater circuit, then check wiring and fuses But I strongly suspect you’ll find power going to the heater circuit And I also strongly suspect that the sensor heater is dead, and you just need a new sensor ---
**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\ **Post date:** [January 26, 2015, 6:18am UTC](https://community.cartalk.com/t/f150-02-sensor/88829/6 "2015-01-26T06:18:30Z")
[![](http://ww2.justanswer.com/uploads/drivefast1971/2012-02-29_195438_1.gif) ](http://ww2.justanswer.com/uploads/drivefast1971/2012-02-29_195438_1.gif) > **[2005 ford: signal stuck lean bank 1 sensor 2what do I need to replace](https://www.justanswer.com/ford/6bii6-ford-500-2005-ford-500-o2-sensor-signal-stuck-lean-bank.html)** > > 2005 ford 500 o2 sensor signal stuck lean bank 1 sensor 2 what do I need to replace and where is the location - Answered by a verified Ford Mechanic ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [January 26, 2015, 6:21am UTC](https://community.cartalk.com/t/f150-02-sensor/88829/7 "2015-01-26T06:21:37Z")
@knfenimore‌ Unless an F150 has a transverse mounted engine . . . ---
**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\ **Post date:** [January 26, 2015, 6:24am UTC](https://community.cartalk.com/t/f150-02-sensor/88829/8 "2015-01-26T06:24:40Z")
@db4690 Your right, pic wrong. Marked as 05 F150 ---
**Author:** ![Caddyman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/caddyman/32/23_2.png) [@Caddyman](https://community.cartalk.com/u/Caddyman)\ **Post date:** [January 26, 2015, 6:40am UTC](https://community.cartalk.com/t/f150-02-sensor/88829/9 "2015-01-26T06:40:49Z")
Replace both (if it has 2) rear sensors, reset the light and drive on. How many miles on his vehicle? ---
**Author:** ![Jacob03](https://avatars.discourse-cdn.com/v4/letter/j/9f8e36/32.png) [@Jacob03](https://community.cartalk.com/u/Jacob03)\ **Post date:** [January 26, 2015, 8:11am UTC](https://community.cartalk.com/t/f150-02-sensor/88829/10 "2015-01-26T08:11:35Z")
Thanks everyone. I have 94,000 miles on the F150. I will replace both tomorrow.