want to disable the air pump for correct AFR-logging with datalogit and wideband. What is the easiest way to do that? What exactly do I have to do? Is it enought to disconnect the air pump connector? Or do I have to remove the air pump relay?

Chris

 

Easiest way is to unplug the electrical connection to the airpump. The plug is right above the airpump so you can't miss it. Then uncheck the O2 feedback checkbox in the PFC settings using the datalogit and you are good to go for logging. I believe the airpump is not active after 3-4,000 RPM fyi.