fostytou, you said its a 'constant' source you use for your gauges, did you mean a true 'ignition' source?

 

I mean when the key is in the 'On' position it is supplying power during both cranking/starting and normal running.

 

Thanks fostytou.

 

Tephra I tested 96530006 ROM out on my 2003 EVO8. I ran 94170008 thru 94170015 ROM's, running 0015 currently and the car runs great on that ROM.

The car would not start, it would crank over but not fire. I have a JDM Map sensor installed so that should not prohibit it from running in fact that ROM should use that MAP sensor correct?

I also got a SES light and the error was P0513, it references DTC P0513: Immobilizer Malfunction, however I did copy over my Immobilizer and typically an Immobilizer not transfered will start a car but shut it down after a couple of seconds running. This was not the case, the car cranked but did not start. I put my 94170015 ROM back in and the car fired up no problem.

Let me know what you think, anything I can try?

~Zach

 

did you try immobiliser disable?

did you copy the ffa bits over?

 

There is a 96530006 V6 out??

 

no

 

Not sure how to disable the immobilizer on that ROM, ffa bits, please explain....

~Zach

 

 

when swapping major romids (ie 9417 -> 9653) you either need to disable the immobiliser (bit3 of 0xFAA) OR do the 0xFFA bit copy.

Both options are outlined here:
http://evoecu.logic.net/wiki/96530006

 

Awesome! Got it! I want to keep my immobilizer and I am sure that will be a big deal for everyone so I don't want to disable it. Setting 56DA to 56D2 will disable it on that ROM, so I can try that if setting the immobilizer hex doesn't work.

So I copied my 9417 immobilizer hex into the 9653 and will give it another shot tomorrow and let you know how it goes.

Didn't realize that would stop the car form even starting....interesting!

~Zach

 

well try disabling the immob first - that way you can rule that out as the cause of non-start.

otherwise the next thing will be valet mode - just bump it to 3000rpm as the test .. 96530006 has some weird bug with valet mode after flash... havn't worked it out :|

 

Will do

 

Will flashing the wrong ROMid specifically 94170015 to 9350006) ever cause irrepairable harm to my ECU? If I can get a positive "it's fine" then I'd be willing to test all kinds of ridiculous stuff.

 

should be fine.

jcsbanks have even flashed 96260009 over his 88570008 (and they are 256 vs 512k roms)