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MED 9.1 actual boost pressure cap BGB
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Topic: MED 9.1 actual boost pressure cap BGB (Read 724 times)
BetePaille
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MED 9.1 actual boost pressure cap BGB
« on: May 03, 2026, 01:35:07 AM »
Hi,
Is there a way to log ACTUAL higher than 2550 with 3b map sensor ? VCDS reads pvdr_w which is limited to 2550. pvd_w goes to 5160 max. Even with 3b map (gradient / offset done accordingly), as soon as boost goes higher than 2550 mbar I get throttle cut and +25% STFT (load limiter permits it with 250 RL and KFLDBHN FFed).
K04 antisurge core + RS3 injectors (6 ms so no issue there). I don't see any major differences in Golf 6R damos which doesn't have this issue?
Thanks !
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IamwhoIam
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Re: MED 9.1 actual boost pressure cap BGB
« Reply #1 on: May 04, 2026, 02:08:27 AM »
I think if you went and actually logged all your requests, you'd realize that your load limiter doesn't permit any kind of 250% as you think. Time to start using VehiCAL and to log actual RAM variables rather than ass-umptions.
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I have no logs because I have a boost gauge (makes things easier)
BetePaille
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Re: MED 9.1 actual boost pressure cap BGB
« Reply #2 on: May 12, 2026, 05:53:45 AM »
You are right. But with all limiters FFed and KFLHDBN 2.7 all over the map, the car still wont see more than 2550 actual, even with 3 bar map sensor, and cuts even when not running lean on STFT. Are there some AXX/BGB with issues in the code?
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fknbrkn
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mk4 1.8T AUM
Re: MED 9.1 actual boost pressure cap BGB
« Reply #3 on: May 12, 2026, 06:43:20 AM »
you can log pvd_w instead of pvdkds_w with changing 'i14230 tabelle meskanale' (77 to 1774)
but plsol would be limited anyway
impossible to tell something specific about the reasons of throttle cut here
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