Hi!
I have a strange trouble on my Evo VII.
I`m using Tephra v7 and EvoScan 2.9.
I`m logging the 1byteLoad and then, when i look to my log, i see that the values in log cells doesn`t match the map. They are the same that in 2 or 3 columns higher (by load).

For example: at 250 load and 3500 RPM i see ignition -3, but in HighIgnition Map of my ROM placed the 2 value. And -3 value placed in third column right (280 load). And so on...
This mistake takes the place at WOT and at Cruise.

Attached the screenshots of MapTracer.

I tried to test my stock ROM and there situation is the same. (last screenshot).

Has anybody any ideas? I don`t know, what to do...

My specs:
2.3 stroker, 270/270 HKS cams, 20g Turbo, Greddy FMIC, HKS blow-off etc...
The logs was done on 1.1 Bar (1.6-1.5 in peak) boost.

 

Are you living on altitude? Remember that timing vs load is subject to barometric correction.
Hope it helps.

 

+1

And there is multiple types of load and different ROMs use them differently.

Here you go...

Regular Non-modded ROMs and V5 ROMs - Timing maps use baro+temp compensated below 77F. Above 77F, just baro compensated is used.

Fuel maps should be using baro+temp compensated essentially
all the time. Below about 20 load in closed loop, Raw load is used for fuel.

9653 V7, 8859 V7 & 8858 V7 - Both Fuel AND Timing use the same Load that the Fuel maps would normal use (ie Load_Baro_n_Temp_Compensated)

9417 V7 - Both Fuel AND Timing use Load_RAW aka 1/2byte load

 

Have you checked that the 1 byte scaling factor is set the same in both EcuFlash and Evoscan?

 

My places altitude is 150-177 meters above see level.
My stock ROM ID is 98640014
My Tephra v7 ROM ID is 90550701
What type of load using my ECU? I think it is temp_baro_compensated.

The 2byte to 1byte LOAD factor in Tephra is 1.2, i see it in EcuFlash.
But where can i check it in EvoScan? I don`t know, sorry.

And one more... I logged it at negative temperature by Celsius (-5|-10 C it is about 14-23F). May this is the reason?

 

In Evoscan right-click on 1B load and go to "edit items" (or something to that effect). Check that the multiplication factor is 1.2 in the equation you'll see on the right. If that doesn't sort it, then I too am keen to know where and when different load compensations might be applied!

 

Thanks! i checked it, there is the 1.2 too...
So, what should i inspect more?

 

Can this be due to low temperature?