4AGE o2 voltage

[Vertigo]

Sup. Anyone know what the voltage of the factory 16v o2 sensor is at stoich?

[Crucible]

4 wire O2s are around 500mv @ stoich.

[Vertigo]

Cheers, talking about the single wire narrowband though. It bounces from lean to rich, I know, just trying to track down the crossover point.

[sergei]

Cheers, talking about the single wire narrowband though. It bounces from lean to rich, I know, just trying to track down the crossover point.

Bouncing is normal operation, eg it should bounce between 0v and 0.8-1v, it means ECU is trying to get stoich, there is not really a fixed crossover as hysteresis is fairly steep on those. If you get 0.5v on those (and it is not being filtered by multimeter) then it is probably dead, or ECU is ignoring it (but there is slight lean condition?), or both.

[gepsk8]

On 4age 16v factory O2 sensor waste of space,

[sergei]

On 4age 16v factory O2 sensor waste of space,

It depends, if it is AE92 then most likely it is very useful there (square diagnostic plug). On AE82 (round diagnostic plug) probably not so much.