For 2 values you usualy get somewhere around 1-2 values per second. You can use the below procedure on 2004 TDI and newer to check the IQ but you cannot change it. This article focuses on 1996-2003 VW TDI sold in North America or any TDI that use the electronic Bosch VW injection pump. The more values you log in VC-Scope (the logging part of VCDS) the slower the refresh rate. Fuel injection quantity (IQ), the amount of fuel injected into the engine with each stroke, is adjustable in your TDI. The garret VNT15 turbo used on the BKD engine usually runs at full boost somewhere between 15-20psi but can spike higher. So, if you show 2350mbar, you take off the normal air pressure (e.g. In order to get PSI, you need to take the boost pressure, subtract the atmospheric pressure and then convert to PSI by dividing by 68.9 (68.9 mbar in 1 psi). This is the actual presure, with 0 boost being somewhere around 1000mbar (or 1 atmostphere). Measuring blocks below are intersting for what you want:Ġ11,2 - Boost pressure requested by controller (in mbar absolute)Ġ11,3 - Boost pressure supplied by charger (in mbar absolute)Ġ11,4 - Vane position in % (this is how 'open' the vanes on the turbo are)Ġ10,2 - Atmospheric pressure (in mbar absolute) Yes, assuming you have the BKD engine (2.0 PD without DPF, 103kW,320Nm before chipping) you are looknig at controller 01 (Engine)
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