[cn555ic]

Are our 02 sensors wideband 0-5v. If so what ECU wire pin would read output?

Thanks

[cn555ic]

Found my answer:They are on the small black subconnector. Pin 19 and 20. They are yellow/white wires..

Does anyone know the voltage...is it 0-5v??

[n54mike]

Originally Posted by cn555ic

Found my answer:They are on the small black subconnector. Pin 19 and 20. They are yellow/white wires..

Does anyone know the voltage...is it 0-5v??

The wideband sensors are current based, so they don't output a voltage proportional to the AFR. You either need to add an aftermarket wideband or let a tune with canbus integration handle whatever your trying to do.

[cn555ic]

Originally Posted by n54mike

The wideband sensors are current based, so they don't output a voltage proportional to the AFR. You either need to add an aftermarket wideband or let a tune with canbus integration handle whatever your trying to do.

Our front O2 sensors are widebands and the rears I believe are narrow bands. The widebands should read off in volts. Can anyone confirm this??

[Joshboody]

WB report current to the DME... the amount and direction determine how much oxygen is pumped or removed from the reference cell to reach stoich. the difference determines lambda. A full understanding is a little beyond my peabrain.

NB report voltage.

[cn555ic]

I am thinking about installing a dyno tune lean cut off which it states it can be directly hooked up to the factory o2 sensors. So the rear sensors are NB. Does anyone know the volts of our NBs?? Thabks

[Joshboody]

NBs should be 0-5v. I believe 0.45v is stoich. But NB only read rich or lean... once it reports lean, its too late I would think. Go with aftermarket WB

[n54mike]

Just get a JB4 with PROPER nitrous integration and call it a day. Why risk it?