Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

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This is Mat’s post about the programmed ECU’s back in August.

 

His screenshot shows it saving as a csv file. (comma separated value).
Excel or Open office or google sheets will open them and can be used for plotting.

It isn't that hard to learn excel to do simple plotting.

 

Yes. Pricing is all relative. Salaries are higher to compensate for the increased cost of living. Down side is if you are in an industry that doesn’t pay as much.

 

What app is this?

 

Fuelly
My mpg’s suck!

 

As soon as you get east of the cascades, it all gets better. Even hood river is way more sunny than Portland, still expensive though. If you want affordable, awesome outdoors, and sunny, check out Spokane... but shhhh don’t tell anyone I told you

 

Yea that looks more like mine lmao averaged like 14 mpg on my last tank

 

Anyone know which post had the videos and info he posted about 1.05? I never done a tune before 1.05 will be my first just had the tsb's done. I stressed the 2 most people were posting about but they said they found another even more recent one.. truck drives way better but still missing something for sure.

 

I hope this tune drops SOON. I have a 5.5 mile trip in the morning to McDonalds to get me some coffee. Would love to see how it does on my trip.

 

Looks like it’s gonna be October
Saturday
October
Or
November

 

I know I'm waiting on all the specs.

 

Toyota dropped another TSB so looks like we got to wait another few weeks so mat can incorporate in 1.05.

 

Oh stop...

 

Current list of 1.05 Changes (will be in OP soon). This isn't everything

1.05 Update-

ENGINE

Throttle-Airflow control
P-D 4D Tables - Power Demand 3 axis compensation tables 16 way
* Smoothed, modified for immediate on throttle response and throttle stabilization
Throttle Airflow Angle Expectation 4D via Temp
*Airflow control throttle mapping adjusted (feedback, throttle delivery)
Throttle Airflow Angle - Inverse
*Matched
P-D Table Modifier for Calculated airmass
*modified match
Torque calculated Limit
*modified, torque ceiling has been raised
Peak allowable throttle angle vs Temp
* modified - Throttle limit for extreme cold
Throttle Base Target (angle to torque)
*modified
Throttle Base Target (angle)
* condensed
Engine Expected Fill Rate Table
*Modified for increased Filling request

Ignition
Ignition Timing Optimization
* 93 octane optimization
Ignition timing modifiers for engine temp and intake air temp
* 1.0 ratio multiplier for cleaner ignition control via 3D tables
Ignition Valve Timing compensation
*eliminated, compensated directly from primary tables
Ignition Knock Activation > Multiplication
*Modified for a more aggressive ignition retard control for RPM under 3000 Where the engine experiences excessive detonation

Valve Timing
Atkinson Optimization
*Atkinson mode expanded for further optimization, angle increased throughout to eliminate Atkinson stumbling under 2000 rpm
Power Demand Timing
* Power demand (high load) valve timing reverted back to our dyno settings vs TSB reduction
Valve Timing Idle
*intake valve timing at idle increased for idle stabilization > +10*

Fueling
Lean Torque
*Leaner full throttle under 4000 RPM
Power Demand High RPM
*unchanged from previous tune AF target 12.7

Injection
Direct Injection High Pump Fuel target
*increased Rail pressure on high load, lower RPM during lean torque
PI/DI Ratio
*modified injection switching status (PI to DI), Full DI at any RPM high load.
Injection Timing
*mapped for high load areas > Injection delay

Idle
Idle Base Targets
*Base idle RPM targets vs ECT modified

Torque
Torque tables vs Throttle Angle
*Mapped > Shuffle feature disable > condensed
Torque Table vs Accelerator
*Limit increased under 3000 RPM


TRANSMISSION

Shift Mode - D
Mapped Points
*Mapped points in shift mode D modified further. eliminated redundant maps by placing different values. Allows for more accurate shift control vs throttle
Mapped Points 2
*Mapped points for higher gears modified
Downshift Mapped points
*downshift tables mapped for all gears to reduce downshift clunking


Shift Mode S
Mapped Points
*Mapped points for 1-4 modified in S mode
Torque Converted Minimum RPM engangement
*Minimum RPM points for Full lock modified (lower RPM threshold)
Full lock Decel
*in Gear- Gear selected full lock modified for decel


ECT Modifier
Mapped points
*ECT mapped points modified for every gear
Torque Tables - Shifting
*Torque tables for shift control with ECT modified for faster shifting,
Downshift modifier
*faster downshifting

Downshifting - ECT - S Mode
Downshift
*Tables for request torque on downshift, transmission base pressures modified. Rapidly increases downshift request (can downshift much, much faster in S mode using selector.)

TCU
TCU pressure command
*base TCU pressures for gears upshifting and downshifting modified to meet torque demand (high load)
temperature dependencies
*Temperature based transmission modifiers enhanced for better cold shift, where this transmission sucks.

Torque converter
Locking
*Modification to locking demand tables and request / require torque threshold for locking in D mode
Locking 2
*Modification to tables to increase rate of torque converter full lock during normal driving
Locking 3
*disables locking on full throttle acceleration



that's about half of it.. will have the rest later. 1.05 has more changes than all other tunes combined.

 

There was a recent study that showed someone needs to make more than $106k to be considered above the poverty line!

 

Well shit. Bet some of you impatient dudes look a little silly right now.

This alone and the torque ceiling being raised:

Throttle-Airflow control
P-D 4D Tables - Power Demand 3 axis compensation tables 16 way
* Smoothed, modified for immediate onthrottle response and throttle stabilization

 

Looks very nice. "optimized for 93 octane "

 

Probably took him all day just to write this up