evo4mad

iTrader: (4)

I have got myself a USEvo8 94170008 ecu wired into my JDM Evo4, and am going to help dissassemble this rom. After a comprehensive wiring mission, I have only hit one snag, JDM cars don't have immobilizer ECUs nor Coded keys. So as you can see, my car turns over, but the ecu is holding off on Fuel or Ignition. Any master immobilizer code to satisfy the ecu? LOL, I can see this answer is going to bad for USEvo8's, but JDM Evo's install aftermarket immobilizer systems and I dont need the USEvo8 one to be operational. If you don't want to post this info on here, please PM me, it would be appreciated, thanks.

1) Ignition switch on, ECM sends signal to immobilizer
2) Immobilizer uses signal from ECM to trigger transmission of random data to key ring over antenna.
3) Key ring mixes random data with key ID and transmits back to immobilizer
4) Immobilizer validates ID against registered IDs and, if a match is found, send activation signal to ECM.
5) ECM, upon receipt of signal from immobilizer, allows the car to start.

evo4mad

iTrader: (4)

My experience is that at some point in the 94170008 rom it will come down to one logic statement, "has the immobilizer signal been receipted" all I would have to do is change this one byte ecu instruction to say "has the immobilizer signal NOT been receipted" lol

evo4mad

iTrader: (4)

unless it continues to be Chatty with the immobilizer ecu while driving, but even then it would still be the same routine and ecu instruction that would keep checking if it is a valid signal.

MalibuJack

iTrader: (5)

You might want to post this over on Aktivematrix, I think Bez might have this info.

AFAIK there is no "Master key" But I'm sure a bypass/override is something that takes a few bytes of code..