tacho all wired up but wont work?

S

solocanking

New Member
hey i wired up my tacho the other day and all i get when i turn on the car is that it shoots to 5 grand and then does nothing, its wall earthed and stuff and wired into pin 58 on the ecu for an imput
 
Take the wire outta pin 58 and extend that wire round to the blue plug next to the wiper motor in the engine bay the white wire is the one your after. just try and see if that works because the pin 58 in my mirage did nothing but the blue plug gave me a signal.
 
Where have you earthed it? I would be checking the spots you have used on the back of the cluster for both the earth and the signal.

I have an evo/gsr cluster in my mirage, no issues at all with it being plugged into Pin 58. Works perfectly. Can take a pic later on of the spots I earthed to.
 
Oh if its standalone tacho that could be a bit different. I have heard people using the thick white wire on the dizzy for the signal on a 1.5, and probably give it a proper earth would be the best way to go. Also is there a red wire that needs wiring to the accessories?
 
BI65ND said:
I have an evo/gsr cluster in my mirage, no issues at all with it being plugged into Pin 58.
Click to expand...
Do you think there is any difference to a 99 model mirage BI65ND? Because even using a correct ecu connector I got no results from my pin 58 and had to use the blue conection in the engine bay.
 
mmc77 said:
BI65ND said:
I have an evo/gsr cluster in my mirage, no issues at all with it being plugged into Pin 58.
Click to expand...
Do you think there is any difference to a 99 model mirage BI65ND? Because even using a correct ecu connector I got no results from my pin 58 and had to use the blue conection in the engine bay.
Click to expand...

Shouldn't be any difference at all. I had a bit of trouble getting a signal when we first did it, tried the dizzy wire, tried tapping into another ECU wire that was meant to be an RPM signal, but nothing worked. Once I got the proper pin to use with the PIN 58, wired it from the cluster, pushed it in to the ecu plug and it worked straight away.

For an earth on the standalone tacho, I'd just be putting a ring terminal on it and running it to a chassis bolt, theres plenty in there around the dash - without pulling it out and checking, I think the 4 screws that hold the stereo cradle in place are good earths
 
Just run it to the blue connector in the engine bay and ground it on the ground location for your head unit. I had troubles with pin 58, if you wire it straight to the blue pin you shouldnt have any troubles
 
jonesy3194 said:
Just run it to the blue connector in the engine bay and ground it on the ground location for your head unit. I had troubles with pin 58, if you wire it straight to the blue pin you shouldnt have any troubles
Click to expand...
for the 4g15 Ive done it this way with an aftermarket Splitfire tacho.
 
yes there is.
if you have an mirage/lancer delivered with factory oem tacho cluster and then fit a lancer 4g93 cluster in the tacho would not work as far as Ive tested.
However the output for pin58 tacho is the same.
The 4g15 and 4g93 factory oem cluster jsut use different signals.
 
ok cause either my tacho is busted or the wire is broken cause i have connected it to the blue plug on the fire wall aerthed to my head unit mount and still no signal, it just flicks the needle when you turn the car on
 
why is earth to your head unit.
use a chassis earth. you can use a bot or screw that secures the metal frame to the lower part of the dash board
 
If the earth is good enough for the head deck im assuming it will be good enough for a tacho. I wouldnt imagine earthing is ur issue here.
 
yeah it being a stand alone tacho would i require any thing else in the circut apart from power, earth and imput wires coneccted?
 
Unleeeeeessssss he has instead gotten confused with the illumination wire behind the head deck wich appears to be an earth when the lights are switched off as u get a feed through the globe filiment.
But he said he earthed it to chassis, all i can tell u to do is buy an LED testlight an probe the wires at the tacho to see if your getting the correct feeds. Reason for LED is because it will pickup the tacho pulse Unlike the filiment globe testlight. Test ur earth, ur pulse and your power. If u have each of those at the tacho, then ur tacho is a faulty POS. get a refund.
 
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