[BlackGSR]

I have a 95 GSR. I was under the impression that they only had one o2 sensor. I am soon changing my exaust so i was looking and noticed there was an o2 sensor in my cat as well. Whats up...am i just stupid or what?

 

[DeanH]

the o2 sensor is supposed to be in the cat.

 

[MeltMan]

that is the only o2 sensor

 

[BlackGSR]

i thought there was one in the header also? or would that be obd2

 

[DeanH]

obd2 tegs have primary and secondary sensors.

 

[DefiantGSR]

he has a 95 obd1 gsr..and hes wondering why there is a o2 sensor in his cat. i personally thought obd1 gsr's have primary 02 sensor(in the header) and no secondary 02 sensor(in the cat). whats up?

 

[DeanH]

no, the primary (and only) o2 sensor for 95 gsr is in the cat, not in the header. now if it's obd2, there's one in the header and one in the cat.

 

[SurferX]

OBD2 have two O2s, one at both ends of the cat. There is no O2 in the header on the OBD2 GSR.

 

[Elements]

what would happen if i were to cut the second o2 sensor,on my obd2 teg,or can i connect it to my first sensor?.....also is it worth i to switch back to obd1,cause the cost is like an extra 250 skunk2 cross over,plus the ecu cost.100-200??let me know

 

[SurferX]

If you get rid of the 2nd O2 you will get a CEL, code 65 I believe.

 

[Elements]

my boy gave me a PR4 ecu.can i use it to convert,with the Skunk2 harness?to get rid of the second o2 sensor