Free VE Table Corrections — Drop Your MSQ and a Datalog, I'll Do the Rest
Newb
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Tuner Studio ==== > Boost VVT ======> Boost Control Target Table:
New Table to paste into tuner studio
You need to change the RPM axis (the bottom row of the boost target table):
Change from:
To:
The new table is shaped like real driving:
New Table to paste into tuner studio
Code:
152.0 158.0 162.0 162.0 160.0 155.0 150.0 145.0 152.0 158.0 162.0 162.0 160.0 155.0 150.0 145.0 150.0 157.0 162.0 162.0 158.0 153.0 148.0 142.0 145.0 152.0 158.0 158.0 155.0 150.0 145.0 138.0 135.0 142.0 148.0 148.0 145.0 142.0 138.0 132.0 120.0 125.0 130.0 130.0 128.0 125.0 122.0 118.0 105.0 108.0 110.0 110.0 110.0 108.0 108.0 105.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
Change from:
Code:
200, 400, 600, 800, 1000, 2000, 3000, 4000
Code:
3000, 3500, 4000, 4500, 5000, 5500, 6000, 6500
- Closed throttle (TPS 0%) row: All 100 kPa = no boost at all, ever. The turbo gets a break when you're not asking for power.
- Light throttle (TPS 20-40%) rows: Tiny amounts of boost 105 to 130 kPa (0.5 to 4 psi). Cruising on the highway, light passing, normal driving. Smooth and gentle.
- Medium throttle (TPS 60-70%) rows: Moderate boost 145 to 158 kPa (6.5 to 8.5 psi). Pulling onto a highway, accelerating up a hill.
- Full throttle (TPS 90-100%) rows: Peak boost 162 kPa (9 psi). The most you can safely make on stock injectors.
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Stock 265cc purple top injectors =====> Needs settings I suggested ===> Unless you can verify the fuel pressure on your car this is the safest bet for now.
Source: MSExtra forum thread "what's going on here? MS3-pro PID boost control tuning"
https://www.msextra.com/forums/viewt...?f=134&t=56123
https://www.msextra.com/forums/viewt...55619&start=60
"In basic mode, the code just sets the PID gains to 100-100-100.
Advanced mode allows you to change them."
And also:
"Depending on the version of the firmware, tuning P only will never reach the target.
Your best bet is to go back to basic mode and tune the sensitivity slider to get you
to the target with minimal overshoot and minimal oscillation."
================================================== ====
Boost Tolerance is Off. Worth turning on with a value of about 30 kPa once you have basic boost dialed. It tells the ECU to ignore tiny fluctuations within tolerance and only react to meaningful deviations.
The forum messed up the formatting for the Boost Control Pasting into Tuner Studio ; attached for you.
Edit: Just keep in mind that we are changing a lot of settings and this kinda puts you back at base map territory the fueling will for sure be off, but now that we have a solid base the VE changes will start to have a real effect.
Could you elaborate on the reasoning for this a bit, should I only go to advanced if I can't get good boost control results only using the sensitivity slide? Closed loop boost control in general was a bit confusing for me, does the rest of the cl bc settings look normal?
https://www.msextra.com/forums/viewt...?f=134&t=56123
https://www.msextra.com/forums/viewt...55619&start=60
"In basic mode, the code just sets the PID gains to 100-100-100.
Advanced mode allows you to change them."
And also:
"Depending on the version of the firmware, tuning P only will never reach the target.
Your best bet is to go back to basic mode and tune the sensitivity slider to get you
to the target with minimal overshoot and minimal oscillation."
================================================== ====
Boost Tolerance is Off. Worth turning on with a value of about 30 kPa once you have basic boost dialed. It tells the ECU to ignore tiny fluctuations within tolerance and only react to meaningful deviations.
The forum messed up the formatting for the Boost Control Pasting into Tuner Studio ; attached for you.
Code:
The rest of your CL boost settings: Good: Algorithm: Closed-loop correct for a working setup Good: System type: Single Solenoid Good: matches your EBC Good: Solenoid frequency: 39Hz Slow — fine for most MAC valves and similar Good: Min/Max Duty: 0/100 standard Good: Lower CLT Threshold: 170°F — sane, prevents boost control from running before warmup Good: Lower Limit Delta: 100 kPa — this is your "open loop until close to target" gate. 100 kPa is wide; you're effectively running open loop with PID kicking in only near target. 40-50 kPa is tighter. Once Basic mode is dialed, you can reduce this for finer control. Upper Limit Delta: 20 kPa — if MAP exceeds target by >20 kPa, system goes to closed (zero) duty. Reasonable safety net. Max Rate: 500 kPa/sec — rate limit on duty cycle changes. Standard.
Last edited by X-Cam34; May 6, 2026 at 02:52 PM.
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Newb
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I appreciate the sources, I will do some more reading on the topic.
I totally understand we're taking some steps back here. Good news is the fuel map wasn't even close to being dialed to begin with
I'll make these changes and get a good driving session in later today. Thank you.
I totally understand we're taking some steps back here. Good news is the fuel map wasn't even close to being dialed to begin with
I'll make these changes and get a good driving session in later today. Thank you.
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Good deal and the data logs will tell me where the fixes landed and how to adjust, this helps me develop my software while helping you at the same time.
Edit: If you are using Auto Tune during logging or making adjustments at all then I do not need those logs, I need it with just you driving, the adjustments while driving will obscure data.
Edit: If you are using Auto Tune during logging or making adjustments at all then I do not need those logs, I need it with just you driving, the adjustments while driving will obscure data.
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Newb
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Alright the new ae curve worked like a dream, I really should've used trubokittys base map instead of whatever one I did.
Drivability got much smoother, but looks like it's running rich almost all around. I didn't hand tune any part of the fuel table yet, as much as I did want to adjust at least idle, to let your tool do the heavy lifting.
Boost control also needs adjustment as I saw it overshoot target pretty badly before evening out, I'm assuming that's tuned by the slider. Info is attached, looking forward to the next iteration.
Drivability got much smoother, but looks like it's running rich almost all around. I didn't hand tune any part of the fuel table yet, as much as I did want to adjust at least idle, to let your tool do the heavy lifting.
Boost control also needs adjustment as I saw it overshoot target pretty badly before evening out, I'm assuming that's tuned by the slider. Info is attached, looking forward to the next iteration.
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Boost control also needs adjustment as I saw it overshoot target pretty badly before evening out
but looks like it's running rich almost all around.
Make Changes to Boost control table, paste in new table save tune Flash re log.
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You are fine to make adjustments, I just want the logged data to be steady state, make your adjustment if needed then only send me the data when all of that is done, just make sure that I get the table after you made your adjustments and it is for sure what is used during logging...
So you are still maxing out your injectors when you are going over 5k RPM what we will do with that is lower the boost so you will able to drive your car without worry at the higher RPM range: You really need to upgrade your injectors but I will help you make the car drive-able until you do that.
So here is a safe Boost Control Table that allows you to be able to do WOT pulls without risk, if you could flash the fuel table and this boost table as well then re log that would be great, we could add more boost I just wanna see where this lands I'd rather start a bit smaller on the boost to be on the safe side maxing your injectors on boost is one pull away from a bad day...
Also Updated Duty Bias Table
So you are still maxing out your injectors when you are going over 5k RPM what we will do with that is lower the boost so you will able to drive your car without worry at the higher RPM range: You really need to upgrade your injectors but I will help you make the car drive-able until you do that.
So here is a safe Boost Control Table that allows you to be able to do WOT pulls without risk, if you could flash the fuel table and this boost table as well then re log that would be great, we could add more boost I just wanna see where this lands I'd rather start a bit smaller on the boost to be on the safe side maxing your injectors on boost is one pull away from a bad day...
Also Updated Duty Bias Table
Last edited by X-Cam34; May 7, 2026 at 09:51 PM.
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Yeah maybe we just leave the Boost control target as is, refine the VE Modify the duty bias to stop the over shoot, and then lean the Boost AFR out so that the injectors are not maxed. That I think is the most solid path forward till you upgrade the injectors, leaning the AFR target out will stop the injectors from maxing out in the high rpm areas, the idea of leaning the AFR table out is cause the injectors can not deliver the fuel needed to hit the targets. if we fix the over shoot dial the VE and lean the afr where the injectors can not compensate you will have a dialed tune for what you have. Specifically, lean the AFR target in the cells where Duty Cycle is hitting 98%+...only
https://bittuned.com/guides/injector...ycle-explained
https://www.supraforums.com/threads/...-cycle.106490/
https://www.hpacademy.com/forum/gene.../afr-question/
https://www.msextra.com/forums/viewtopic.php?t=76093
https://www.mr2oc.com/threads/what-a...thanol.453632/
https://bittuned.com/guides/injector...ycle-explained
https://www.supraforums.com/threads/...-cycle.106490/
https://www.hpacademy.com/forum/gene.../afr-question/
https://www.msextra.com/forums/viewtopic.php?t=76093
https://www.mr2oc.com/threads/what-a...thanol.453632/
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Newb
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Updating tables right now, and will do some pulls shortly. Right around 8psi seems right to me. I am in no rush for more power, I just want a tune as stable or more stable that the stock ecu. Need a good foundation for upgrades, and just as a proof of concept to myself.
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Newb
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So I did a quick run with your updates. I had 2 cuts on one of the pulls, not sure what happened but it wasn't afr safety or overboost. It was overboost, I forgot we turned on boost tolerance. Looks like it was just tickling the threshold with the new target table.
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Peak injector Duty in the latest log: 90.6%
Location:
t = 530.8s (one specific pull)
RPM = 6156
MAP = 147.8 kPa (7.1 psi)
TPS = 99.8% (WOT)
AFR = 11.90 vs target 12.10 (just 0.2 rich, basically on target)
PW = 17.67 ms at 90.6% duty
VE table cell: RPM 6100 × MAP 145 (nearest break point)
================================================== ================================================== ================
Updated boost target table (peak 160 --> 145)
Open Tuner Studio ====> Boost/VVT
(Currently shows 20.0 change to 30.0)
(Currently shows 30.0 under Boost Tolerance — change to 40.0)
--------------------------------------------------------------------------
Apply these settings, flash new VE table, Save tune---> power cycle car. Log.
Location:
t = 530.8s (one specific pull)
RPM = 6156
MAP = 147.8 kPa (7.1 psi)
TPS = 99.8% (WOT)
AFR = 11.90 vs target 12.10 (just 0.2 rich, basically on target)
PW = 17.67 ms at 90.6% duty
VE table cell: RPM 6100 × MAP 145 (nearest break point)
================================================== ================================================== ================
Updated boost target table (peak 160 --> 145)
Open Tuner Studio ====> Boost/VVT
Left side Boost Control Settings
Boost Control Upper Limit Delta(kPa): 20.0 --> 30.0(Currently shows 20.0 change to 30.0)
Right side Overboost Engine Protection
Tolerance(kPa): 30.0 --> 40.0(Currently shows 30.0 under Boost Tolerance — change to 40.0)
Everything else stays exactly the same.
--------------------------------------------------------------------------
Apply these settings, flash new VE table, Save tune---> power cycle car. Log.
Last edited by X-Cam34; May 10, 2026 at 05:21 PM.
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Some info to help you understand what is going on here. https://kris8342.github.io/Turbo_Info/
Ve table is looking a lot better...
================================================== ================
PER-PULL BREAKDOWN
------------------------------------------------------
================================================== ================
PEAK BOOST OBSERVED
------------------------------------------------------
10.95 psi gauge (176.8 kPa absolute)
at 4168 RPM, t = 2220.7s
injector DC at peak MAP: 78.1%
max injector DC during WOT: 97.6% @ 6338 RPM, 151.2 kPa (7.23 psi)
Updated Duty Bias Table with one small change.
Ve table is looking a lot better...
Code:
VE CORRECTION REPORT 5/11/2026, 8:54:38 PM =========================================================================== Cells corrected: 91 (16 lean, 75 rich) Cell Status EGO AFR Err Before After Change -------------------------------------------------------------------------------- 3500 x 160 RICH Pulling 1.0% +0.20 70 69.7 -0.3 4400 x 160 LEAN Adding 0.3% -0.21 78 78.2 +0.2 5000 x 160 LEAN Adding 0.6% +0.24 78.2 78.5 +0.3 5500 x 160 LEAN Adding 1.6% +0.28 77.8 79 +1.2 6100 x 160 LEAN Adding 2.2% -0.08 81.4 81.7 +0.3 3200 x 145 RICH Pulling 2.3% +0.04 67.6 66.1 -1.5 3500 x 145 RICH Pulling 2.5% -0.07 70.9 69.2 -1.7 3800 x 145 RICH Pulling 2.8% -0.27 79.4 77.3 -2.1 5000 x 145 LEAN Adding 0.6% +0.23 76.5 76.8 +0.3 5500 x 145 LEAN Adding 1.4% +0.25 78.2 78.7 +0.5 6100 x 145 LEAN Adding 1.7% -0.16 76.7 78 +1.3 7000 x 145 LEAN Adding 0.8% -0.53 75.6 75.9 +0.3 2500 x 130 RICH Pulling 1.0% -0.22 71.4 71.1 -0.3 3200 x 130 RICH Pulling 1.6% -0.31 70.1 69 -1.1 3500 x 130 RICH Pulling 3.5% -0.39 73 70.7 -2.3 3800 x 130 RICH Pulling 4.1% -1.15 79.8 76.8 -3 2500 x 115 RICH Pulling 1.2% 0.00 71.9 71.6 -0.3 3200 x 115 RICH Pulling 1.6% -0.43 71.4 70.4 -1 3500 x 115 RICH Pulling 2.5% -0.89 71.5 69.8 -1.7 3800 x 115 RICH Pulling 3.5% -2.19 76.7 74.5 -2.2 4400 x 115 LEAN Adding 0.6% +0.03 84.3 84.6 +0.3 5500 x 115 LEAN Adding 1.4% -0.82 76.7 77.1 +0.4 2500 x 100 RICH Pulling 1.2% -0.14 68.7 68.4 -0.3 3200 x 100 RICH Pulling 1.9% -0.35 68.9 67.7 -1.2 3500 x 100 RICH Pulling 2.6% -0.87 66.1 64.6 -1.5 3800 x 100 RICH Pulling 2.9% -2.63 73.4 72.1 -1.3 1250 x 90 RICH Pulling 4.6% -1.72 71.6 68.7 -2.9 1750 x 90 RICH Pulling 1.8% -0.37 65.1 64 -1.1 2500 x 90 RICH Pulling 1.5% -0.21 66.4 65.4 -1 3200 x 90 RICH Pulling 1.5% -0.42 66.2 65.9 -0.3 3500 x 90 RICH Pulling 2.0% -0.68 65.2 64 -1.2 3800 x 90 RICH Pulling 1.8% -0.60 71.6 70.4 -1.2 4100 x 90 RICH Pulling 2.3% -0.93 78.4 76.7 -1.7 4700 x 90 RICH Pulling 1.6% -2.00 80.8 80.4 -0.4 800 x 80 RICH Pulling 3.4% -1.30 77.3 75.7 -1.6 1250 x 80 RICH Pulling 3.8% -1.48 79.6 77.7 -1.9 1750 x 80 RICH Pulling 1.9% -0.51 66.9 65.8 -1.1 2500 x 80 RICH Pulling 1.7% -0.29 66.2 65.2 -1 3200 x 80 RICH Pulling 1.3% -0.43 61.9 61.6 -0.3 3500 x 80 RICH Pulling 1.1% -0.19 60.3 60 -0.3 3800 x 80 RICH Pulling 1.4% -0.39 67.7 67.4 -0.3 4100 x 80 RICH Pulling 3.0% -0.89 72.9 70.8 -2.1 4400 x 80 RICH Pulling 3.9% -0.43 73.5 71.4 -2.1 4700 x 80 RICH Pulling 3.1% -0.98 77 74.7 -2.3 800 x 70 RICH Pulling 4.2% +0.70 76.2 74 -2.2 1250 x 70 RICH Pulling 3.1% -0.50 77.1 75.7 -1.4 1750 x 70 RICH Pulling 1.5% -0.14 66.2 65.9 -0.3 2500 x 70 RICH Pulling 1.7% -0.27 64.7 63.7 -1 3200 x 70 RICH Pulling 1.9% -0.30 62.4 61.4 -1 3500 x 70 RICH Pulling 1.4% -0.34 59.7 59.4 -0.3 3800 x 70 RICH Pulling 0.8% -0.57 65.1 64.8 -0.3 4400 x 70 RICH Pulling 3.9% -0.11 69.9 67.7 -2.2 4700 x 70 RICH Pulling 3.8% -0.34 75.8 73.1 -2.7 800 x 60 RICH Pulling 1.4% -0.12 73.7 73.4 -0.3 1250 x 60 RICH Pulling 2.9% -0.89 74.9 73.8 -1.1 1750 x 60 RICH Pulling 0.6% +0.02 62.6 62.3 -0.3 2500 x 60 RICH Pulling 0.9% -0.08 63.3 63 -0.3 3200 x 60 RICH Pulling 1.9% -0.15 60.4 59.4 -1 3500 x 60 RICH Pulling 1.6% -0.21 60.3 59.4 -0.9 3800 x 60 RICH Pulling 1.3% -0.64 62.9 62.6 -0.3 4700 x 60 RICH Pulling 3.8% -1.20 78.2 75.4 -2.8 5000 x 60 RICH Pulling 4.0% -0.91 73.8 71 -2.8 800 x 50 RICH Pulling 0.7% -1.28 66.8 66.5 -0.3 1250 x 50 RICH Pulling 3.3% -1.32 67.1 66 -1.1 1750 x 50 RICH Pulling 0.9% -0.03 56.6 56.3 -0.3 2500 x 50 RICH Pulling 0.8% +0.01 60.8 60.5 -0.3 3200 x 50 RICH Pulling 1.6% -0.07 57.6 56.8 -0.8 3500 x 50 RICH Pulling 1.8% -0.16 57.2 56.2 -1 3800 x 50 RICH Pulling 1.5% -0.46 60.1 59.8 -0.3 4700 x 50 RICH Pulling 3.4% -2.17 74 73.2 -0.8 5000 x 50 RICH Pulling 3.9% -1.31 69.6 67.7 -1.9 500 x 40 RICH Pulling 4.2% -1.74 60.3 58.8 -1.5 800 x 40 RICH Pulling 4.4% -0.92 55.8 55.7 -0.1 1250 x 40 RICH Pulling 1.9% -0.18 62.9 62.1 -0.8 1750 x 40 RICH Pulling 0.7% -0.23 59.1 58.8 -0.3 3200 x 40 RICH Pulling 0.7% -0.33 56 55.7 -0.3 3500 x 40 RICH Pulling 1.3% -0.50 59.5 59.2 -0.3 3800 x 40 RICH Pulling 1.8% -0.84 61.1 60.4 -0.7 4700 x 40 RICH Pulling 4.1% -1.81 67.5 65.9 -1.6 800 x 30 LEAN Pulling 4.1% -0.13 46.1 46.6 +0.5 1250 x 30 RICH Pulling 3.4% -0.10 50.7 50.3 -0.4 1750 x 30 RICH Pulling 0.7% -0.03 56.5 56.2 -0.3 2500 x 30 LEAN Adding 1.6% +0.29 53.6 54.1 +0.5 3200 x 30 LEAN Adding 0.8% +0.02 50.3 50.6 +0.3 3500 x 30 RICH Pulling 1.8% -0.01 38.7 38.3 -0.4 3800 x 30 RICH Pulling 1.9% +0.78 42.2 41.7 -0.5 800 x 20 RICH Pulling 6.3% -0.33 47.6 47.3 -0.3 1250 x 20 RICH Pulling 6.1% -0.34 52.7 52.6 -0.1 2500 x 20 LEAN Adding 4.3% +1.81 24.2 24.7 +0.5 3200 x 20 LEAN Adding 1.8% +1.20 25.4 25.6 +0.2 3500 x 20 LEAN Adding 0.7% +2.22 25.6 25.9 +0.3
================================================== ================
PER-PULL BREAKDOWN
------------------------------------------------------
Code:
# time RPM range peak kPa peak psi peak RPM end kPa end psi frames 1 76.5s 2532-6077 176.1 10.85 4165 149.4 6.97 68 2 181.5s 2559-6076 145.0 6.33 6076 145.0 6.33 27 3 2218.1s 2534-6338 176.8 10.95 4168 151.2 7.23 80 4 2465.5s 3239-5922 154.4 7.70 4498 148.2 6.80 31 5 3114.6s 3892-6251 150.2 7.09 4713 147.8 6.74 49 6 3147.5s 4066-5440 151.8 7.32 5151 151.4 7.26 50 7 3300.5s 3494-6502 153.4 7.55 4530 145.6 6.42 33
PEAK BOOST OBSERVED
------------------------------------------------------
10.95 psi gauge (176.8 kPa absolute)
at 4168 RPM, t = 2220.7s
injector DC at peak MAP: 78.1%
max injector DC during WOT: 97.6% @ 6338 RPM, 151.2 kPa (7.23 psi)
Updated Duty Bias Table with one small change.
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Boost is still over shooting a bit, but let's just do VE correction, and Duty Bias Adjustment before we lower Boost target... this round. We are almost done just let me know how the car feels after this round of corrections. I do think that the new Bias Table will help with the over-shoot issue...
PER-PULL BREAKDOWN
Can you tell me if the car has been improving with the VE changes , as we move along?
PER-PULL BREAKDOWN
Code:
------------------------------------------------------ # time RPM range peak kPa peak psi peak RPM end kPa end psi frames 1 234.7s 2504-6121 161.3 8.70 5205 139.7 5.57 119 2 256.7s 2668-6096 168.3 9.71 3637 154.8 7.76 107 3 494.1s 2545-6659 161.5 8.73 4524 150.0 7.06 45 4 588.7s 3051-5935 180.2 11.44 3911 154.2 7.67 93 5 688.3s 2526-3387 157.4 8.13 3387 157.4 8.13 34 6 695.9s 2912-4013 177.4 11.03 3864 163.6 9.03 43 7 783.4s 3394-5889 169.3 9.86 4309 152.0 7.35 47 8 813.8s 3836-5808 177.4 11.03 4050 154.2 7.67 60 9 909.5s 2530-6153 144.9 6.32 6153 144.9 6.32 21 10 911.3s 4670-5902 149.0 6.91 4929 148.2 6.80 21 11 913.1s 4642-6038 151.3 7.25 4867 149.8 7.03 32 12 915.5s 4786-6062 153.5 7.57 5242 151.8 7.32 47 13 935.5s 2508-6189 169.6 9.90 3648 152.2 7.38 120 14 1057.7s 2505-6423 163.9 9.08 3490 152.1 7.36 127 15 1149.2s 4264-4774 153.8 7.61 4774 153.8 7.61 21 16 1212.2s 4133-6046 149.6 7.00 5055 148.6 6.86 24 17 1306.7s 3280-6114 154.0 7.64 4597 150.1 7.07 29 18 1323.8s 3206-5123 170.4 10.02 4301 151.8 7.32 40
Can you tell me if the car has been improving with the VE changes , as we move along?
Last edited by X-Cam34; May 12, 2026 at 09:21 PM.
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