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o2 question

Posted: Thu Aug 03, 2006 12:01 am
by Threshld1
Ive confirmed my o2 sensor is bad and have been running with it unplugged. Im looking to replace it soon but im not sure what i should go with. Are there any decent priced wideband sensors (with narrowband output for the ecu) i can get now and get a gauge later when i have the ability to adjust my AFR?

The only difference between a 3 wire and 4 wire o2 sensor is the 4th wire as signal ground correct? If i dont get a wideband yet i can run this (bottom) sensor with no problems (provided i ground that sensor ground...) correct?
Any reason to get a denso one full with harness if im running a meghan bellmouth needing extend wire anyways? I obviously would rather spend the $40 for one with bare wires i can cable up, then $110 for one i would have to cut. Is the brand going to matter?
Thanks

Posted: Sat Aug 05, 2006 4:39 am
by Legacy777
Zeitronix has the best priced & setup wideband IMO.

You're correct, the 4th wire is signal ground.

That sensor should work.