does the front 02 voltage change?

ie MUT13?

I will ask a friend who has 89980000 as their native if their fuel trims work...

 

Yes, front 02 is ok.
I will try to read MUT13 (6A27) for MAT.

Thank you Dave!

 

no front 02 is MUT13...

88580014 doesn't do MAT... so there is nothing to read.. ill look up 89980000... hold on

 

Yes, I know that 88580014 has no MAT in fact I'm talking about 89980000.
Thank you very much Dave your are gentle.

 

Number 1, this is a common problem, I chalk it up to the ecu relearning a new flash. The best thing to do is to reset the ecu, if you can't log them after that, its a waiting game for the ecu to be able to check them. There isn't a problem with your car and as long as you know the fuel trims should be relatively(using know good scalings) close you'll be fine.

 

I believe that the address for MAT is ok (BD), only the formula in EVOScan is not correct for linearization of JDM temp. sensor.
Unfortunately the problem of Fuel trims remain

 

Dave are there news from your friend?

 

yeah sorry.

He stopped using stock ECU and went after market

So he doesn't remember.

You and rolly are having similar problems with swapping ROMID's.

Maybe try 88570008...

 

Dear Dave, sometime ago I tried 88570008, it is for an EVO IX GSR JDM and with this ROM my car doesn't start.

 

you may need to copy the 0xffa bits over as well as your immob code

 

Yes Dave, when I test a rom I always change the immobilizer code.

 

It is confirmed. The hardware of ECU stock is different from RALLIART ECU.

 

did you copy the 0xFFA bits over?

 

Yes Dave, I copied all the eight values of FFA periphery from my ROM to 88570008-v5.10fix-mods (valet disabled) and my EVO does not start.
I'm looking to know which is the component that is not installed in stock ECU. It is important to understand which is the difference from stock ECU to RALLIART ECU.

 

hrmmmmm thats really strange...

what if u do the immobiliser disable?

is your autovalet disabled?

just incase try setting your valet rpm limit to like 3000... (just incase)