General MotorsGM Genuine Parts AFS105 Heated Oxygen Sensor

I have a 1996 2 door tahoe that had a check engine light with the code PO155. This code is a heat circuit code for your 02 sensor on bank 2 sensor 1. I replaced this sensor and it fixed the problem and cleared the check engine light. The sensor is good quality and like OEM. Fit just like stock. Installation was smooth as well. You'll just need a 22mm wrench. Plug unclips and it comes with new plastic fastner to clip into bracket. Worth every penny. The 105 sensor is for bank 1 and 2, sensor 1 on both driver and passenger side before the cat. The 106 sensor is for the 2 sensors after the cat on both driver and passenger sides. When I change these 105 sensors, I always do both sides at the same time on banks 1 and 2, sensor 1 on both sides before the cat.

Got an error code for bank 2 sensor 1 oxygen sensor (pre-cat) in my 1997 Chevy Silverado C1500 5.7L. Got the part, looks a little different than the original but matches images from GM/ACDELCO websites. Replaced it and my check engine light is gone and my truck runs better. Would recommend ordering these parts from Amazon. It’s been a week and so far no issues, no additional codes.

1999 gmc jimmy 4.3 4x4 got the : P0135 Code : bank 1 sensor 1 bad O2 heater sensor . for the price I just decided to change all three of them at the same time with this one. for both the up and down. its 2 Upstream 1 Downstream. I cleared the check engine light. changed them. crank the car and let it warm up for 10 minutes then drove it for about 20 miles. OBD 02 said still not ready. so I waited till it was "cold real early in the morning" started the car fast didn't let it warm up and drove it a couple miles .OBD 02 then 'finally' changed to ready. so I started it back up and just let it idle for 30 minutes. drove it to the shop didn't shut it off "inspection granite" Happy Customer. good product fair price. .. ps for the love of God use some anti seize on the threads people. and yes the anti seize will burn off smoke and smell like your cars on fire for the first time or two you drive it afterwards.

replaced oxygen sensors, works great

This vendor is selling an ACDelco 0MOS6020 Oxygen sensor in place of the ACDelco AFS105. Initially, I was going to return the product, but after some research I determined that the connection and pinout of the connector is the same as the AFS105. The AFS105 has a heater resistance of about 15ohm, the 0MOS6020 is about 11.4 ohm, so it is well within spec. After verifying fitment, pinout, and resistance, I have kept and installed these on my '96 Chevy Silverado 5.7L and work fine. You can search on Herko Automotive website for more information on the ACDelco 0MOS6020. 4 stars because the product works but is not an actual AFS105 unit.

I love the product, what I don't like is the inaccurate information for the product and the year of these trucks.This 02 sensor fits directly with our upstream on our years of trucks.It's mis-leading consumers to think differently.

This fit my 97 Blazer perfectly and has been working great. Only took 15 minutes to remove and replace the old o2 sensor. Check engine light (MIL) turns off after several successful drive cycles with out the ECU detecting any problems or if you have a scan tool you can erase the DTC's set in the ECU and that will clear the check engine light (MIL) and if the o2 sensor was your true problem then the light should not come back on. If it comes back then you miss diagnosed the problem and you probably changed a good o2 sensor. Don't blame the sensor for poor a mechanical diagnoses. Check engine lights are only indicators to symptoms they don't tell you how to fix the car even with a OBD2 code reader. Do your research before you buy. The biggest problem on this site are people who buy the wrong item because they did not research then give the item a bad review because it did not fit. Read! read!! read!!! and then read!!!! some more before you order.

I bought this GM AC Delco for my 1997 Chevy C1500 5.0L, been a great one, what's weird now is, Amazon says this doesn't fit my truck, and I've ran AFS105 at different auto part places and it fits my truck, so if you have a truck like mine, or the K1500, it WILL WORK, anything the year 2000 and up, it will NOT WORK.