![]() Positive numbers displayed indicate fuel is having to be added to compensate for lean conditions. Note that seeing numbers higher than 0 does not necessarily mean your car is running dangerously rich or lean just because of a little correction. The computer can correct for these rich and lean conditions up to 25% or so. No fuel is having to be added or removed to maintain harmony. This means the car is doing what it has been asked to do. ![]() The numbers will be displayed as a percentage starting from 0% indicating NO fuel correction is needed. ![]() This is a fuel correction table used by the computer when it senses the car richening and leaning from the programmed air/fuel tables. Any lifting of the throttle during the run will result in inaccurate A/F numbers for the purpose of our evaluation. Note: In order to have a log that will be valid, you will need to see at least a 3rd gear wide open throttle run from about 2500rpm until redline. ![]() VAG-COM Datalogging for MY2001+ Audi/VW Vehicles. Vag-Com Reference Page - Note that if you are unsure of how to execute logging functions please see the following page on this site.
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