RXTurbo Posted August 29, 2005 Share Posted August 29, 2005 I am putting a MY99 EJ20 from an Impreza into my 93 wagon, replacing the EA. I have the full impreza wiring harness and the whole engine and immobiliser bits are wired into the wagon. It refuses to start, I have concluded that the immobiliser is dead. Has anyone been successful in mapping the output waveform that the immobiliser sends to the ecu? Is it just a squarewave, or is their serial data attached? Need to find out so I can make a box to replicate the signal... Thanks all Ben Quote Link to comment Share on other sites More sharing options...
Hondasucks Posted August 31, 2005 Share Posted August 31, 2005 I'm not sure about the Immobilizer in a Subaru, is this one of those things with the key with the chip in it? I know the older GM system (I forget the name for it) was nothing more than a certain value of resistor in the ignition key, if this resistor didn't match the value of the resistor in the computer, it would shut the fuel off after 2 seconds. There are boxes available that more or less just go through all the possible values, for people doing engine swaps and such, but I think on the GM system it gives you 3 or 5 tries and then it locks the system out for 15 minutes or something like that, so guess-and-check could take a while. Quote Link to comment Share on other sites More sharing options...
RXTurbo Posted August 31, 2005 Author Share Posted August 31, 2005 Hey, the sube key contains an RFID tag and is programmed to suit the immobiliser - I think the chances of replicating that are slim to none... I am going to get hold of an oscilloscope and try to measure the signal soonish... Quote Link to comment Share on other sites More sharing options...
Hondasucks Posted September 1, 2005 Share Posted September 1, 2005 The big question is, is the immobilizer built into the computer? or is it a separate box, if it's a separate box, then you just have to figure out what sort of a "pass" signal it sends to the computer... If it's in the computer, you could possibly find a computer that doesn't have the immobilizer (I don't think the US models do...) Quote Link to comment Share on other sites More sharing options...
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