V3 3.068 Lambda and AFR test

GENERAL
1

Hi,
Today Tested Lambda sensor LSU4.9 (in free air) and AFR oscillating 13.8-14.1
My lambda target is 0.94 and Lambda 1 oscillating 0.94-0.96

Tested on 2 different Ecumaster Black ecus, same result. Will try on LSU4.2 same test when sensor will arrive.
In free air AFR should show around 21 why it is 14?

2

this car had wiring problem, now sorted lambda show good.

But i tested LSU4.2 on 2 cars and 2 ecus with lambda outside of exhaust in fresh air. Both show AFR 7.2(should be 21) and Lambda 1 goes lean to 2.49. So Lambda 1 looks good but afr goes other way to very rich.

3

I Test 2 Lambda 4.9 on Short time and Check this extra with Lambdatool maybe 0,01-0,02 on different…. Test Area about Lambda 1.00 so thats nothing….