sbn1979

After some information on later cars 2002 onwards, are their any modified open source roms availible? And can immobilers be switched off or changed to interchange ecus between cars using periphery etc?

bludgod

iTrader: (3)

there are lots of opensource roms available on the romraider.com forum - however coding the ECU to the immobiliser requires a diagnostic tool (SSM/ECUTek). JDM ecu's don't have the immobiliser chip so usually can be swapped in OK if the wiring matches up.

sbn1979

Ah ok thanks for that so even the later jdm ones don't have an immobilers? U.K. Ones do

bludgod

iTrader: (3)

yeh all the UK ones from bugs onwards have an immobiliser check in the ECU so the ECU needs recoding to the car if you swap it

sbn1979

Nice one thanks

MartynJ

Map it using a CARBERRY rom and the immobiliser is removed

bludgod

iTrader: (3)

i've not noticed that martyn, i thought it was only if you used a 16bit JDM ecu the immo would be removed - doesn't the immobiliser circuit live in a separate part of the ECU from where the engine ROM lives?

sbn1979

Is that an open source rom?

bludgod

iTrader: (3)

yes carberry is the open source project for speed density/antilag on 16bit ECU's, however the immobiliser stuph is still seperate from the rom file so carberry won't disable the immobiliser - no rom file can you have to have it coded to the car or switch to a JDM ecu that doesn't have an immobiliser check in the circuit board.

sbn1979

Great information, cheers mate

MartynJ

I think you'll find it is part of the rom, as I've used Carberry to get round immobiliser issues on kit cars in the past which have had the transponder removed.

It can't be written over or changed in the rom, but it will remove it completely.

bludgod

iTrader: (3)

oh wow - didn't know that at all I'd always thought it was a separate area on the ECU, shall have to give that a go