If you own a Scangauge II (SGII for short) and a new 2012+ Passat TDI, this guide will show you how to program your gauge to enable display boost pressure, exhaust gas temperature and CAT temperature.
First you need to learn how to program XGAUGE monitors on your Scangauge.
EGT1 will show the exhaust gas temperature before the turbocharger, just as it comes out of the engine.
CAT – this will show you the temperature of the air just before the first catalytic converter.
CAC -charge air cooler, aka intake air temperature will show the temperature of the air as it exits the intercooler. Good for monitoring heat soak.
FRP – fuel rail pressure.
DPF – diesel particulate filter pressure drop, useful to monitor DPF clogging, as the DPF gets loaded with ash the pressure drop will increase