It's balanced every year or ca. 700 miles with the tool that is designed for this.naukkis79 wrote: ↑Tue Mar 20, 2018 4:27 pmAnd that VE difference is measured with what? You still use closed-loop and believe blindly what lambda tells?Belgian1979 wrote: ↑Tue Mar 13, 2018 2:13 am Cruise is within limits (<5% difference overall in VE, in a lot of places it's around 1%). At idle and transition areas I have up to 20% difference in VE, with the cylinders close to the iac supply running at 15-20% VE difference. The result is uneven running and an engine that tries to hunt.
Have you balanced you itb setup with manometer? With itb it's always first thing to do.
I'm sure that lambda is not 100% accurate, but I'm sure it's close. The difference is too large to be attributed to the O2's.