matt82

bump!

i have a tach to install in my r33 and it requires a 12volt pulse but r33 only has a 5volt tach pulse how can i install my tach??

thank you very much guys now the second question if the pulse is only a 5 volt square wave and my new tacho requires a 12 volt signal where do i het the 12 volt signal from? or do i need an signal convertor of some sort??

i do not have a multimeter and was wondering if somone could tell me what voltage in put out on the tach wire from an r33 ECU thanks in advance matt