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new g20 owner, need advice

773 views 12 replies 6 participants last post by  iyaoyas22 
disconectign the battery will frie you ecm not a good idea. next time just hook a volt meter to the battery and it should read 13.8 at idle and at a lil bit of rev should read about 14.3 or so.
 
ehhh its just not a good idea on computer controlled engines the surge of hooking it back up or taking it off an over volt the ecu and just reak havoc and it gets baaaad and. it works on older cars from like early 80s on down but anything with a computer you may get away with it but its not something you really wanna practice.
 
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