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Tiguan 2.0 TDI 2009 (n4s) with ACC - Fixing pictures


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#161 OFFLINE   n4s

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Posted 12 March 2020 - 08:44 PM

I saw OnOffs reading that high as well and went what??? Did euro VWs get tuned for higher boost? Then I saw a video of his idling sitting at 1 bar. But even then you take that 1.5 bar convert to psi for us Yanks, which is 22 psi, subtract 14 psi for atmospheric and you have stock 8 psi boost. Pretty crazy the difference between Bar and Psi.

Probably why the Beetle here got a pretty much blank boost gauge at first, then they had one that went up to 35 psi, I assume was for a TDI engine as it had no vacuum side. Pretty crazy. But heard they are totally not accurate. Why I like my Polar FIS.

This is from Beetle, 5C5 part number.
ONOFF one is from Scirocco, 1K8.
Mine goes to 2.5, his to 3.0

2.5 is 36psi, and that minus 14 will make the 22psi that turbo is making, not 8.

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Posted Today, 01:51 AM



#162 OFFLINE   Mostic

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Posted 13 March 2020 - 09:26 AM

No, it's like that. It starts from 1 because it's atmosferic pressure. If you don't believe check scirocco. This is original part from vw and input is canbus, not vacuum line.


It’s not something that I don’t believe, actually I believe because I saw it in my friend’s car too :)
But as I said it’s strange for me because the normal boost gauges gives numbers close to the accurate more than the OEM VW ones (like yours and my friend).
That’s why I was wondering and asking ..

#163 OFFLINE   n4s

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Posted 13 March 2020 - 10:27 AM

I'm also learning a bit about CAN BUS communications.

 

Made a test bench and did some programing with arduino, to simulate some car functions. I got inspiration and initial code from this site https://hackaday.io/...aming-simulator

 






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