R33 Tach output wiring - who's who?

[s13_rb25det]

hi there,

i have a s13 with RB25 SI swapped, and will be putting in the R33 tach instead of my stock one, put i cannot make sense from the wires leaving the tach...

i have tried testing them with a 5V and only managed to get the ILLumination, warning light, and boost gauge, from the tach to work...can somebody indicate on the pict which wire is for

*water temp signal*petrol manometer*speed*RPM*oil pressure

thanks!

nico

[s13_rb25det]

.

[Valley]

rpm has a power, ground, and signal. oil pressure is the same color as coming off the block (trace the wires to the screws that hold in the gauge. i think they're marked OM) trace the water temp and gas gauge. the speedo is slightly harder since it has 4 wires, ones power, ones ground, and match up the japanesse markings for the rest.

[240slidekat]

damn i knew i should of did a write up...i dont really remember which wires goes to which so pretty much just follow what that guy said up top, just follow the wire/trail on the back of the cluster and trail it back to the harness. heres what mine look like after i was done.

[s13_rb25det]

@valley: thx for info

@240slidekat: thx for the picts... looks ... nice project you have there btw...

@all: i have found out a few wires, but could you just maybe just direct me using the picture below in the right area where the RMP and speedo are connected...

if this works out, i'll do a write up on the wiring...

unfortunatley, my s13 is running a CA18DET engine, so i guess that the wiring (colors of cables etc) would differ to the KA guys, but will still do one...

thanks!

nico

[Valley]

left ? i think has oil pressure in it.

right ? has stock boost gauge and speedo in it.

seriously, the four screws that hold the speedo/tach/anything in are like wires, they carry the signal from the layout you can see to the gauge itself. trace the metal lines very carefully and match them up. it takes a while but thats all it is.