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.

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.

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.

After buying a different O2 sensor from a different dealer that was defective I got this name brand one here that works good at a good price.

After buying the gm o2 sensors finally no codes in pcm. Order after market, they didnt work quality seemed good but just did get rid of codes. Very happy with purchase

You can't really go wrong. Mine was pretty easy to replace but my exhaust didn't have alot of rust. Location was easy 96 GMC K1500. Replace both pre or both post cat at the same time, like head lamps.

Exact fit for a 2000 Chevy Blazer, functioning perfectly

Le quedó muy bien a una GMC Jimmy 4x4 se le borro el testigo se ve de buena calidad

Used this heated sensor to upgrade the single wire o2 sensor on a 1992 454 tbi engine. Selected this one based on price . Works flawlessly. Goes into and stays in closed loop quickly, even in sub zero weather . A Single wire sensor will only last 60000 km tops , then mpg tanks. Cut end , spliced wires . 1 - blue o2 wire , 2 - switched positive for heater ,element . All the rest crimp together and ground. Excellent upgrade . Also replace CTS as part of a full tune up . Quality part I assume would work perfect for its intended use.