525gte
11-28-2011, 06:12 PM
so as i am like 99 % done with my 1jswap. the only gauge i am having problem with is the tachometer. i think i need booster of some kind to do this.. what i was wondering is if any new onw knows whAt kind of signal the bmw tac needs to work.? any help at on this is good help. thanks.