Calibrate AFR Table, EGO Sensor Custom Linear WB, 0-5 Volt, 10-20 AFR.
AFR reading starts a few seconds later after engine running.
Internally: It is possible that the jumper SJ3 was not set. This is located behind the wide black plug under the plugged board.
Alternatively, it would be possible to otherwise connect the GP2 pin to ground.
Golf III 16V (ABF) Turbo
K-Data kdfi V1.4 PNP MS2 V3.4.2