O2 Sensor

[LyndsiK]

is there any particular brand that you guys have had better luck with/recommend for O2 sensors on 97 gtp? the front one. thanks

[BNaylor]

AC Delco AFS109 only (front). No Bosch or any other aftermarket.

[LyndsiK]

thanks a lot, do you know the number for the back one as well?

[BNaylor]

Originally Posted by LyndsiK

thanks a lot, do you know the number for the back one as well?

You're welcome. There are two for the '97 GTP, the AFS123 and AFS97. I recommend using the AFS123. Good luck!

[LyndsiK]

appreciate it!!!

[goser]

I can't speak for the gtp, but I went with bosch when I did mine--way cheaper, especially when you can find them on sale. And guess who makes AC Delco oxygen sensors...

[BNaylor]

The GM OEM AC Delco 02 sensors are made by two companies. Delphi and Denso not Bosch.

On a GTP if you use a so called custom or generic Bosch 02 sensor like found at AZ the air/fuel feedback ratio is near out of spec and fuel economy goes down the drain. Plus they fail prematurely (high failure rate).

[richtazz]

I agree with Bob, Bosch O2 sensors are garbage, stick with OEM brands.

[LyndsiK]

thanks for the advise guys....i always heard bosch products dont last very long too