AC Delco Oxygen sensors

[BuickGN]

When looking the part numbers on the Turbo regal website, the GN and GNX have different oxygen sensors. What's the difference between them? Would a GNX sensor work better in our cars?

 

[Nick Micale]

The Denso O2 sensor will work better and last longer than any other brand including AC Delco, and they are less expensive.

 

[turbo89]

The Denso O2 sensor will work better and last longer than any other brand including AC Delco, and they are less expensive.

X 2

 

[BuickGN]

The Denso O2 sensor will work better and last longer than any other brand including AC Delco, and they are less expensive.

Not the question I asked .

 

[scgnx2]

Not the question I asked .

The GNX sensor is supposedly more tolerant to higher exhaust temperature than the GN version.
During development of the GNX a oxygen sensor failed. The story goes that it took out the turbo. Hence, they upgraded to the AFS-22.

 

[turbo89]

Not the question I asked .

Supposed to be a faster re-acting O2 ... no you won't see a benefit

I wouldn't bother running the Delco

 

[BuickGN]

The GNX sensor is supposedly more tolerant to higher exhaust temperature than the GN version.
During development of the GNX a oxygen sensor failed. The story goes that it took out the turbo. Hence, they upgraded to the AFS-22.

Thanks.
The Denso you are suggesting. i Imore. heavy-duty

 

[turbo89]

Thanks.
The Denso you are suggesting. i Imore. heavy-duty

yes just like Nick said they will last longer and are less expensive .. a single track outing with Leaded fuel wont render them useless like the delco ...

seems lately ( last 1-2 years) the delco parts are pretty marginal ... im glad I can bank on built up stock of older NOS parts... Ive actually had a lot of issues with delco spark plugs.. went NGK