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View Full Version : No rpm sr20det tach signal! how to hardwire?


icemhan_21
10-16-2008, 07:43 PM
just swaped in an s14 sr in my s14 and the tachometer isnt working so i checked the wire for the tach and it isnt getting any signal i think theres something wrong with my harness.. so is there any way to hardwire it to make my tachometer work? i heard something about wiring it to cas but havnt find any info about it.. i need help guys! i dont wanna mess up my sr by accidentally revving too high..

projectRDM
10-16-2008, 08:14 PM
The signal is generated within the ECU off the CAS signal. Check your wiring at the F3 plug or replace the ECU.

icemhan_21
10-17-2008, 11:46 AM
i already checked it.. i think theres something wrong with my ecu..