Wideband gauge and sensor

[Tucker157]

What voltage should I be seeing when switching correctly?



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[ibizacupra]

are these logs whilst the 001 is showing +25% adaption? and faulting?

i think the odd reading is just a vcds comms error

 

[Tucker157]

031? Yes. The first is with the code active, and about +12% adaption. It doesn't always jump to +25% straight away, seems to build up to it. The second is after a reset, no code, no adaption. But the code came back by the time I finished the log. And I forgot to check the adaptions after, will do it again today.

The strange value, that held for 10 seconds is not the first time I've seen it pop up on that. Slightly weird it gives units too... Maybe an insight into the heater circuit of the lambda?


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[ibizacupra]

when 031 b1s2 voltage drops the ecu thinks its lean and adapts up its fuel trim to its max 25%

 

[Tucker157]

when 031 b1s2 voltage drops the ecu thinks its lean and adapts up its fuel trim to its max 25%

Fuel trim is controlled by s2? Thought It was s1

After I reset codes, I see the s1 voltages of 0.02 up to 0.8 and s2 voltages between 0.1 and 0.8, s1 seems to mainly be 0.0xx voltages, as it's behaving like this with the code cleared.. Do you think its worth changing the lambda to see if it fixes it?

What are the 'normal' switching voltages?