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27 Posts
I hve been reading on this site all day about tach installs....everything is working on the tach....and ive tried every wire i could...even the ignition coil...which was the only one with results....but it redlined at 1100 or so....this is a 1997 x3 and i just have questions on the "WHITE" wire aka pin 47 you guys are talking about...i tried every single white wire....even the multi colored ones with white in them.....i have no set harness coming off my ecu which is confusing...but instead there are about 5 different harnesses that hook up to the main wiring of the ecu....idk what to make of this....idk what harness to look at....i would really appreciate some legitamate instructions and not just a simple...."hook it to the white wire" you ppl need to realize that the people that come to these forums are the ppl who dont know what they are doing at all (me being one of them) ....they come here for answers not more questions....and from what i read in your answers.....it just brings up more questions.....ive been trying to hook this damn thing up all day....i would appreciate a real location to hook in this wire....so anyone who has an x3 with an aftermarket tach...plz look to where all the wires hook up plz....