'normal' lambda outputs

[darkhorse1001]

anyone know what the normal range of outputs from a lambda are. its on a 99 a4 1.8 code apt.

my guess is it shoud hover around zero, or there about. or am i way off the mark?

[kenney]

Sensor output ranges from 0.2 Volts (lean) to 0.8 Volts (rich). A perfectly balanced or "stoichiometric" fuel mixture of 14.7 parts of air to 1 part of fuel gives an average reading of around 0.45 Volts.

[darkhorse1001]

great stuff, cheers.