Tactrix EcuFlash Info for BRZ 86 FRS Rom flash update and logging

[s4nd]

Originally Posted by steve99

to change the pi/di ratios you would need to later the three pi/di ratio tables for cold/warm/hot


I just guessed on the 30% port


you will need to look at your port and direct injector pulse widths and adjust ratio of port to direct to keep them under 7ms direct and 15 ms port.


Or possible increase size of port injectors if this cannot be done


In addition to rescaling the load axis on tables you also need to adjust the max load limits in the tune else the ecu will just truncate load at a level to low for turbo causing you to run lean.


engine load limiter A and B tables

Thank you Steve, previously i have ever change value on GDI flow rate table,a bit much ,and primary fueling additive a bit much also. after drive hard a few moment,approx 1 hour, i get my engine stall and rough,the check engine light on, after i check, the dtc is p1261 and p1262, DI circuit open, could this cause i change gdi flow too big Steve?, but after reduce all value i was change,the car back to normal

Sand

[steve99]

Originally Posted by s4nd

Thank you Steve, previously i have ever change value on GDI flow rate table,a bit much ,and primary fueling additive a bit much also. after drive hard a few moment,approx 1 hour, i get my engine stall and rough,the check engine light on, after i check, the dtc is p1261 and p1262, DI circuit open, could this cause i change gdi flow too big Steve?, but after reduce all value i was change,the car back to normal

Sand

Im not sure im understanding what your doing.


If you alter the GDI flow tables you will likey unbalance the two fueling systems


Its same as changing the port scalar without changing injectors it just unbalances the port and direct fuel systems.


you better off leaving those alone unless your running E85 and if you do alter them alter both the port scaler and the GDI the same amount percentage wise so they stay balanced.


If your on petrol then don't touch the port scaler or GDI flow tables.






Just adjust the pi/di ratio tables so your using both fuel systems all the time this will increase your overall fueling capacity as you will be splitting your fuel delivery over both systems at all times.


Those error codes indicate you have an actual problem with your DI system. Check your DI computer under bonnet is securely grounded and all mounting bolts care secure, it get its ground via the mount bolts.

[steve99]

Originally Posted by s4nd

Thank you Steve, previously i have ever change value on GDI flow rate table,a bit much ,and primary fueling additive a bit much also. after drive hard a few moment,approx 1 hour, i get my engine stall and rough,the check engine light on, after i check, the dtc is p1261 and p1262, DI circuit open, could this cause i change gdi flow too big Steve?, but after reduce all value i was change,the car back to normal

Sand

have you rescaled the Load limiter A and B tables ??


stock they limit load to 1.4 this is way to low for turbo

[s4nd]

Originally Posted by steve99

Im not sure im understanding what your doing.


If you alter the GDI flow tables you will likey unbalance the two fueling systems


Its same as changing the port scalar without changing injectors it just unbalances the port and direct fuel systems.


you better off leaving those alone unless your running E85 and if you do alter them alter both the port scaler and the GDI the same amount percentage wise so they stay balanced.


If your on petrol then don't touch the port scaler or GDI flow tables.






Just adjust the pi/di ratio tables so your using both fuel systems all the time this will increase your overall fueling capacity as you will be splitting your fuel delivery over both systems at all times.


Those error codes indicate you have an actual problem with your DI system. Check your DI computer under bonnet is securely grounded and all mounting bolts care secure, it get its ground via the mount bolts.

Thank you Steve,you're right,about error codes, i loose connection on my DI computer box.
and Steve,i need a little bit richer afr when i release throttle pedal,so what table i must modify?, i run lean now when release throttle especially at around 2000 rpm.
thank you in advance

Sand

[Kodename47]

Originally Posted by s4nd

i need a little bit richer afr when i release throttle pedal,so what table i must modify?, i run lean now when release throttle especially at around 2000 rpm.

It's normal, you don't need to modify anything. When off the throttle the injectors shut off.

[Roadcone]

What are you guys using to comb thru your logs? i've given up on an alternative logging option appearing so i'm going to just say screw it and deal with it now. Do you have something you dump your data into that makes it more manageable? google sheets seems like a very clunky way to do it.

[steve99]

Originally Posted by Roadcone

What are you guys using to comb thru your logs? i've given up on an alternative logging option appearing so i'm going to just say screw it and deal with it now. Do you have something you dump your data into that makes it more manageable? google sheets seems like a very clunky way to do it.

www.datazap.me

[Kodename47]

Originally Posted by Roadcone

What are you guys using to comb thru your logs? i've given up on an alternative logging option appearing so i'm going to just say screw it and deal with it now. Do you have something you dump your data into that makes it more manageable? google sheets seems like a very clunky way to do it.

Viperdata

[Roadcone]

Originally Posted by Kodename47

Viperdata

Happen to have a link to a safe site for it?

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[Kodename47]

Originally Posted by Roadcone

Happen to have a link to a safe site for it?

http://blog.vittuned.com/viperdata/

[Roadcone]

Originally Posted by Kodename47

http://blog.vittuned.com/viperdata/

Oh my jebuz. If that had live access it would be about perfect. Thank you!

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[steve99]

Originally Posted by Roadcone

Oh my jebuz. If that had live access it would be about perfect. Thank you!

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If you want live lgging with tactrix , brzedit is about only option but its $100 usd

www.brzedit.com

[Roadcone]

Originally Posted by steve99

If you want live lgging with tactrix , brzedit is about only option but its $100 usd

www.brzedit.com

I need to throw all of my data away right now and start over. I've never done anything beyond pull the tune from my car. I can't even remember if I can reasonably log with the stock tune or not.

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[Tor]

Originally Posted by steve99

If you want live lgging with tactrix , brzedit is about only option but its $100 usd

www.brzedit.com

I think Toyota Tech Stream will live log too. It's just annoying that you have to configure it with the engine running.