Secondary o2 sensor...

[Mark_H]

I decided I hate Obd2 and will be eliminating my secondary o2 sensor so I can run a test pipe for tuning purposes and at the track. I don't want the check engine light to bug the shit out of me(and I want to be able to know if I get any "real" codes as well)
Anybody have any experience with any of these "spoofs" or any other way to leave the 2nd o2 sensor disconnected with no CEL?

http://www.casperselectronics.com/cgi-local/store/commerce.cgi?product=IMPORTS

http://userwww.sfsu.edu/~ecg/o2sim.htm

Thanks for any info.
M

[shane]

why not just relocate the sensor? jegs sells the weld in O2 sensor bung for $9. then just put it up by the other sensor. or how about tapping into the wires from the other sensor, make the ecu think it is getting readings from 2 sensors.

[Mark_H]

Originally posted by shane
why not just relocate the sensor? jegs sells the weld in O2 sensor bung for $9. then just put it up by the other sensor. or how about tapping into the wires from the other sensor, make the ecu think it is getting readings from 2 sensors.

Hmm, interesting...That would work I bet but but the wires would have to be extended quite a bit in order to do that.
M

[HONDA GHANDI]

The problem is that the secondary O2 is not for fuel trim tuning. It is merely a check sensor for the OBD-II ECM to verify cataletic converter function. It compares the two signals and verifies cat operation that way. You can run an O2 sim or convert to OBD-I and eliminate it.

[b18cya-T]

how difficult is the obd-1 conversion?? & what parts are required?
what obd-1 ecu would you use on a type-R?

obd-2 to obd-1 harness
p72 ecu

so you might as well just go with the hondata then i suppose...