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Tech Area => General Buick Tech => Topic started by: gnonyx on May 28 2021, 06:58:10 PM

Title: O2 Oxygen sensor
Post by: gnonyx on May 28 2021, 06:58:10 PM

Hi All, It seems each member claimed one oxygen sensor is better than the ACDelco
Highway stars claimed: AFS-21 ACDelco one wire (non-heated, original equipment) Oxygen Sensor for 1984-1987 Vin 7 Buick Grand National, Turbo Regal, 1987 GNX, and 1989 Turbo Trans Am, supersedes both ACDelco AFS-20 and AFS-22 oxygen sensors.
Yet others claimed Denso is better
Which one is supersedes all?

Title: Re: O2 Oxygen sensor
Post by: 1KWIKSIX on May 28 2021, 07:44:41 PM

I’ve had better luck with the Denso, so have stuck with what works best for me. Each to their own , I guess 🤷‍♂️

Title: Re: O2 Oxygen sensor
Post by: gnonyx on May 28 2021, 08:26:39 PM

Quote from: 1KWIKSIX on May 28 2021, 07:44:41 PM

I’ve had better luck with the Denso, so have stuck with what works best for me. Each to their own , I guess 🤷‍♂️

I have tried the 1st two types, and the 3rd will be installing:
ACDelco AFS-22
Denso
ACDelco AFS-21

Which part # do you use for Denso?

Title: Re: O2 Oxygen sensor
Post by: Steve Wood on May 28 2021, 08:50:31 PM

234-1001

Title: Re: O2 Oxygen sensor
Post by: gnonyx on May 28 2021, 10:00:50 PM

Quote from: Steve Wood on May 28 2021, 08:50:31 PM

234-1001

Thanks Steve, and have a safe and enjoyable weekend