Does anyone know the voltage range that the standard lambda sensor puts out on a 97 sti?
Is it possible to disable it for mapping purposes, so you don't get any feedback to the standard ecu?

 

I'm sure someone knows.

 

I know when B Rawle maps cars he replaces the standard lambda sensor in favour of a Motec wide band type that has its own read out display that isnt connected to the ecu at all, so i guess you can but he'll go off the readings he gets on the motec and change the map to suit.

Not sure on the voltage range but i think its around 0.7-0.9v when its working correctly.