my brother and i are in the process of putting his autometer pro-comp shift light into my 92 dx (his car is a 90 si).

of course the power and ground were no problem, but we are stuck on which wire the rpm reading wire(green) needs to connect to on the cluster. no need to go into the engine bay, since we already have the cluster out.

another thread in the archived topics said it is the light blue wire on the far right (when looking at the rear of the cluster), but this does not work so far.

are we missing something? will this not work at all due to the lack of tach? since the car is prewired for one i would think this wouldn't be an issue. all help is much appreciated.

 

help?

 

anybody know?

 

id try out with different other wires too...<if u havent done that already>
sorry..but no help here...last time we splitted a wire from the engine bay when we were installing my friends tach..

 

playboi: you wouldn't happen to know what wire that was?

color would be

what wire would be

 

i dont remember..
it was a toyota aniway...couldve been very different from honda

 

Its a blue wire... That's what its been the 3 times I've installed tachs in civics....

 

on this page it shows u the color of the wires...

http://www.jdmfan.com/technical/perf...ields_sfc-vtec/

rpm signal is yellow/green

 

thanks for the help guys!

we're gonna go try it out now.

 

how did it work out?? im pretty sure that the rpm signal wire is a blue wire that is behind the cluster.. i have installed a remote starter, and monster tach to that wire and never had a problem.. the color of wire changes at the ecu i think.. it is also a blue wire in the drivers side stut tower wire harness..

 

man, this is getting frustrating! the blue wire behind the cluster isn't working for me, so i just went mad and started splicin' and dicin' in hopes of finding something that works. no luck, of course.

blue wire on the driver's side harness, huh? lemme go give that a shot too. i'll post back in a sec.

 

aarrgghhh!!! no luck with the wiring harness... yet. there appears to be two blue wires: one that is bright and solid blue, and another that is slimmer and has silver spots. anybody know specificaly the blue wire?

also, i'm using my cd player as my power source. could this be the culprit?

 

yes..definitely check ur grounds n power source..

 

use the blue wire from the distributor..

 

try A21 at the ECU.

 

the plug w/ 2 wires on it tap into the blue one!

_Brandon_

 

YES

what power wire are you using by the cd player?? is it a constant? or switched power source?? honestly man the easiest way to do it is go to the WHITE wire under the dash, a good GROUND wire or make a new ground, and the blue wire either int he strut tower harness, behind the cluster, or at the ecu.. i have installed many shift lights, tachs, vafc, remote starters and NEVER had a problem..