Hi I have a used L8 ECU that I am replacing the chip in. Is there a way of confirming the CO2 screw is in the correct start position before performing the clockwise-anti clockwise procedure? The ECU I have already had a chip fitted so not sure if I will be starting from the correct position.

 

Don' do any adjustments without a co meter

 

Turn the CO pot 5 turns clockwise then precisely 2 turns anti-clockwise, this will set you at what we call zero pot position

 

Thanks.