🚗 GM Genuine Parts AFS109 Heated Oxygen Sensor: Optimal Performance for your Vehicle's Oxygen Level Monitoring Review

Works as intended; a bit difficult to install; but if you're "mechanically inclined," it's not particularly difficult. highlighted.

All my problems solved. The car jumps up at stop signs and traffic lights. I thought my car was about to take off and crash into the car in front of me. Then it died from time to time when I stopped or just slowed down.

Doesn't work for my Buick Lesabre. I've installed them on other machines with no problems. The code is back and now I have to buy another sensor. I didn't want to leave a negative review as I couldn't reach the seller.

My engine code says my sensor on the top row on my 01 Regal needs to be replaced. I ordered this and exchanged it. For the GM 3.8 you need a flat O2 socket. Looks different than the original. So far no problems. For some electronic parts and spark plugs, OEM is best.

Check Engine Light On. My HP Tuner scanner showed I have a P0141 code on my 2001 Monte Carlo SS (3.8L V6) which is a Front Bank 02 sensor - a sensor on the rear exhaust manifold. This ACDelco AFS109 part works perfectly (check engine light out) when replacing a genuine GM part and saved me $50 compared to a dealer part. Now I will be checking my future Monte Carlo parts on Revain first!

I really have no complaints about these sensors. I also use Bosch sensors, but since I don't have any problems with any of them, I choose the best value for money. I swap them out at the factory-recommended intervals and have noticed that the fuel economy improves by one to five MPG instead of dozens of MPG. Make sure you buy the right sensor for your car, and if you notice really crappy fuel economy, chances are the sensor is being used beyond its end of life.

Did what I was hoping for, check engine light turned off. Lubricate the threads of the old sensor with penetrating oil and let it soak overnight before attempting to remove it. I don't have an O2 sensor port so I just used a box wrench and it worked great for my car that wasn't in the salt. Original part from AC Delco. I've seen some people say that other brands can cause Check Engine Lights so I decided to pay a little more for AC Delco. The light is off, the car drives well, I'm happy.

There is no better O2 sensor than the one AC Delco supplies straight out of the box, resistance is 16.8. I replaced mine in my Buick Lacrosse with the original Delphi that came with the car. a check engine light was installed at the factory, this has been fixed. I have this due to loss of power and rough idle, this should fix it, my old one shows 5.9 which means it's junk, always buy AC delco. And yes it comes with a grab handle, they say he probably didn't look through it and threw it away…

I have a 1997 Cadillac Eldorado. Both top sensors have failed. If your old sensors are AC/Delco AFS125, they are a direct replacement for AFS125. After installing the new sensors, my Caddy runs like a new car! Couldn't believe it! Made a big difference! When installing, make sure you have both a 7/8" deep well sensor socket and displacement sensor socket of the same size. What made the installation easier for me was using a 7/8" goose foot. The crow's foot makes it much easier to screw the…