Defi Boost Gauge Recalibration

If you are using Defi-Link electric gauge (not a mechanical),
you can let your control unit to learn 0 pressure point.

So, please try following way.

If you are using 1st generation control unit

(1)Turn your ignition switch to “ON” (but do not start engine)
(2)Select your Turbo gauge to configure warning value (LED on Turbo
gauge
blinking fast)
(3)Press REC and PEAK switch same time more than 2 seconds.
(4)Finished learning Zero point.

If you are using 2nd generation (=Control Unit II) control unit

(1)Turn your ignition switch to “ON” (but do not start engine)
(2)Select your Turbo gauge to configure warning value (LED on Turbo
gauge
blinking fast)
(3)Press REC and DOWN switch.
(4)Finished learning Zero point.