kyle Posted April 6, 2015 Share Posted April 6, 2015 Hi all I went to get my Impreza wagon wrx UK MY2002 remapped. The chap read my ecu fine but when he did a test write it lost connection with the ecu. He re-tried the test write and it was fine. He did this a few times and it would randomly lose connection. Because of this he has advised me to get a spare ecu in case when he writes the file to my ecu it bricks it. The questions I have are: Is this a common problem? If I take his advice will I need just the ecu or will I need the ecu and keys with chip for immobiliser. Quote Link to comment Share on other sites More sharing options...
stants Posted April 6, 2015 Share Posted April 6, 2015 Who's doing the map ? Do you have the factory alarm or aftermarket one Quote Link to comment Share on other sites More sharing options...
kyle Posted April 6, 2015 Author Share Posted April 6, 2015 Gareth at maptech in brigg. Its a factory alarm setup with keypad Quote Link to comment Share on other sites More sharing options...
stants Posted April 6, 2015 Share Posted April 6, 2015 Is the alarm cutting power after a certain amount of time and thats why it crashes half way through the write process ? Think you may need the keys to a new ecu as they are programmed together. Could be wrong though Quote Link to comment Share on other sites More sharing options...
kyle Posted April 6, 2015 Author Share Posted April 6, 2015 Is the alarm cutting power after a certain amount of time and thats why it crashes half way through the write process ? Think you may need the keys to a new ecu as they are programmed together. Could be wrong though Thats a good point and something I will put forward to Gareth, thanks Stants. Quote Link to comment Share on other sites More sharing options...
kyle Posted April 7, 2015 Author Share Posted April 7, 2015 Spoken to Gareth, He says its not the alarm as it was disarmed and the ignition was kept live. Quote Link to comment Share on other sites More sharing options...
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