virtual torque 2014 vette

Does any one know how to tune the map or airmass separate?
I would like to know which one is actively in control so i can adjust the correct one .
is there a set up similar to what we do with failing the maf to fix the ve ?
i am trying to tune the vv torque tables .
It seems to me that these tables do way more than close the throttle or retard timing, they run the whole show . It think that if the entire table were to be calibrated correctly the cars would run perfect just like stock .
I can`t imagine the gm tuner went ooo i have throttle closer lets just move the driver demand
20% in this one spot that should fix it.

This has been covered pretty extensively on the forum and on some YouTube channels like Goat Rope Garage. Check out his Gen V playlist.
Depending on the mods, you may not need to mess with the MAF tuning? What is done to the vehicle? I don't know if you are really tuning the MAP but instead the total VE (via the Virtual VE table)

I'm learning how to tune as well but I believe the process is as follows:

1. Disable Dynamic Airflow
Engine -> Airflow -> Dynamic -> High RPM Disable = 2 rpm
Engine -> Airflow -> Dynamic -> High RPM Re-enable= 1 rpm

2. Turn off DFCO and COT
Engine -> Fuel -> Cutoff,DFCO -> Deceleration Fuel Cutoff -> Enable RPM = 8,000 RPM
Engine -> Fuel -> Cutoff,DFCO -> Deceleration Fuel Cutoff -> Disable RPM = 7,999 RPM

3. Turn off COT

4. Fail MAF:
Engine Diag -> Mass Airflow Sensor -> MAF Frequency Fail High = 2Hz
Engine Diag -> Mass Airflow Sensor -> MAF Frequency Fail High = 1Hz
Engine Diag -> DTC -> P0103 = MIL on first Error (Make sure the Check Engine light comes on... this confirms the MAF is failed)

5. Fail SD:
Engine -> Fuel -> O2 Sensors -> Monitoring -> O2 Readiness Voltage = -1.795V
Engine -> Fuel -> O2 Sensors -> Long Term Fuel Trims -> Min ECT -> 400F
Engine -> Fuel -> O2 Sensors -> Long Term Fuel Trims -> Max ECT -> 0F
*You could also use the Vehicle Controls and Special Functions in VCM Scanner to Command Closed Loop Off under Engine -> Fuel*

Quote:

---

Originally Posted by SDCE

Does any one know how to tune the map or airmass separate?
I would like to know which one is actively in control so i can adjust the correct one .
is there a set up similar to what we do with failing the maf to fix the ve ?
i am trying to tune the vv torque tables .
It seems to me that these tables do way more than close the throttle or retard timing, they run the whole show . It think that if the entire table were to be calibrated correctly the cars would run perfect just like stock .
I can`t imagine the gm tuner went ooo i have throttle closer lets just move the driver demand
20% in this one spot that should fix it.

---

AM i the only one that has a need to actually rescale the entire vvt ???? there is lots of talk about idle and wot what about the rest ? this car is a auto
with a big cam and it needs to be perfect .

When you add a cam, you pretty much always have to alter the Virtual Torque. But there is more to it than that. Airmass and Air Density are all part of it too along with the limiters. Throttle closure sometimes can be as simple as requesting more Driver Demand, but that is not the only reason for throttle closure. And you have to log the Torque PID's to determine where and what reason it would be closing the throttle.

Quote:

---

Originally Posted by SDCE

Does any one know how to tune the map or airmass separate?
I would like to know which one is actively in control so i can adjust the correct one .
is there a set up similar to what we do with failing the maf to fix the ve ?
i am trying to tune the vv torque tables .
It seems to me that these tables do way more than close the throttle or retard timing, they run the whole show . It think that if the entire table were to be calibrated correctly the cars would run perfect just like stock .
I can`t imagine the gm tuner went ooo i have throttle closer lets just move the driver demand
20% in this one spot that should fix it.

---

I usually leave the virtual torque tables stock. I?ve seen 750+ with stock virtual torque tables with no throttle closure. However, correctly calibrating the DD tables under torque management and the peak torque table under torque model is a MUST

Quote:

---

Originally Posted by howeverthe5oh

I usually leave the virtual torque tables stock. I?ve seen 750+ with stock virtual torque tables with no throttle closure. However, correctly calibrating the DD tables under torque management and the peak torque table under torque model is a MUST

---

Just because the throttle doesn't close means you should leave VTT stock? I don't see how a A8/10 trans would shift correctly with a stock VTT on a highly modified car? I also don't see how you can get good idle spark with a stock VTT when you do something as little as move up to a larger throttle body? I have seen engines drop to low timing moving up to a 103 from stock. I am no expert but this is some of the stuff I have ran into with Gen 5 stuff.

I've never seen a cammed car run properly with stock Virtual Torque tables.