TouringBubble

iTrader: (2)

I've been trying to troubleshoot an issue with a friend's car. It's an imported Evo 7 with OEM ECU and the Tephra 90550701 ROM.

The issue I'm running in to is that the ECU isn't following the defined WGDC tables, and possible reading an incorrect BDEL table as well.

These are the tables for boost control. I've verified that we are on the main map, map switching is currently off and I've even copied these to the alternate tables as well.



In the logs, and in the seat of the pants, it's obvious that the boost control is not responding appropriately. The logged WGDC is much lower than it should be. Power is low, then ramps up as expected with the rising WGDC.

Also, I'm seeing the boost error in the positive when the load is below target. I don't think this is the issue and am assuming that the Evo 7 might have a different location for load error and the logged data is inaccurate. Target load should be 255-ish in the midrange and error logs show +18 even with logged load much lower.

Anyone have any ideas on this, aside from just swapping to a MBC? Thanks!

Attached: .bin and recent log file

TouringBubble

iTrader: (2)

Anyone?

Benja

Turn correction off.
Turn AIT correction off.

Does the WGDC trail the table by 5% exactly?

TouringBubble

iTrader: (2)

We tested with boost error correction off and boost reacted as normal.

Based on what I can see, either the boost error RAM addresses are incorrect or the BDEL or BCLO RAM addresses are incorrect. Can anyone dig in to see which is the case? I just have no idea where to start looking for that.

TouringBubble

iTrader: (2)

No, it's not 5%. It's much more. Like 20%+.