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Transfer to SD, WGDC lowe than before and target map

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Old May 12, 2017 | 12:08 PM
  #1  
PL_MR's Avatar
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Joined: Sep 2012
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From: Montreal, Quebec
Transfer to SD, WGDC lowe than before and target map

Hi,

I'm trying to transfer from direct boost control to SD. It's running well but my max boost (26) is lower of 2 psi.
i check data logging and I see that the WGDC is hitting 5% less.
I try to compare the map definition at a lot of place to see if everything is setup the same for omnibar 4 map, it seem good. I compare the desire boost map and WGDC map and they are the same.

exemple, 5500rpm, should hit wgdc at 83% but i'm only at 78%.
I don't know why it doesn't go to target. When i look at the WGDC correction datalog, it's a 0 everywhere

I don't know why it doesn't go to target.
any idea of what I could check

Does the VE table could affect that?
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Old Aug 11, 2020 | 08:14 PM
  #2  
qwertykerr's Avatar
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Joined: May 2011
Posts: 37
Likes: 0
From: Michigan
Originally Posted by PL_MR
Hi,

I'm trying to transfer from direct boost control to SD. It's running well but my max boost (26) is lower of 2 psi.
i check data logging and I see that the WGDC is hitting 5% less.
I try to compare the map definition at a lot of place to see if everything is setup the same for omnibar 4 map, it seem good. I compare the desire boost map and WGDC map and they are the same.

exemple, 5500rpm, should hit wgdc at 83% but i'm only at 78%.
I don't know why it doesn't go to target. When i look at the WGDC correction datalog, it's a 0 everywhere

I don't know why it doesn't go to target.
any idea of what I could check

Does the VE table could affect that?
maybe because yout TPS isn't hitting the 87 so it's interpolating with the previous column?
Reply
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