Originally Posted by scoobysix

However, the proper procedure for resetting the ECU (on a 99/00) includes connecting the green plugs behind the steering column, and pumping the pedals in a specific order (I can't remember what it was). So personally, I don't think disconnecting the battery will work, unless it's disconnected for like a year or something (I read somewhere that the capacitors on the ECU board hold their charge for ages even after the battery has been disconnected).

Originally Posted by Shinobiken

Sorry to dig up and old thread, but i need to reset my ecu on my my99 wrx. did a search and most of the guys reckon is a simply battery disconnection for 15 minutes. but then i came across this post. so can someone please confirm what the proper procedure is for resetting a stock my99 wrx ecu?

Thanks in advance!
Ken.