1jzgte into hilux speedo question...

[hu5tln]

hey everyone, not sure if this has been asked yet but i'm building an old 88 hilux filling the engine bay with a 1jzgte, and my question is you, what is the best way to hook up the electronic speedo to the factory hilux cluster, or is that just a rubbish thing to do, please help out as i am lost on this one thing. ... cheers kern

[Smokey228]

What gearbox are you using?

Cheers,
Jase

[hu5tln]

hey jase, just goin to run the auto gearbox that came bolted to the engine as i've been told they are a really strong box, but also open to idea's, cheers mate

[The Real Roadrunner]

you should be able to screw a speedo cable straight into 1 of the ports on the extrension housing. post pics of the housing and ill let you know which sender can be changed.

cheers
linden

[TasCressida]

i have the same drama with my JZZ30 soarer 1J into my MX83 cressida.
i was going to screw the normal type cable thing into the extension housing but that would mean taking out the sensor that send the speed signal to the ecu.... when thats not operational im told the car will have dramas.

im stumped here aswell.

anyhelp much appreciated ..sorry to jump in on your thread ... thinking u may have the same drama as me.
not having a speedo sucks at the moment....... not tickets as yet lol.

[hu5tln]

yeah sounds like you may have the same drama, i'll take a pic and post it his afternoon, when i get home, but like you said TasCressida i,m abit worries the engine/auto box wont work like it should, however i mite be wrong

[wilbo666]

i have the same drama with my JZZ30 soarer 1J into my MX83 cressida.
i was going to screw the normal type cable thing into the extension housing but that would mean taking out the sensor that send the speed signal to the ecu.... when thats not operational im told the car will have dramas.

im stumped here aswell.

anyhelp much appreciated ..sorry to jump in on your thread ... thinking u may have the same drama as me.
not having a speedo sucks at the moment....... not tickets as yet lol.

On MOST (Yes not all, but the vast majority) the Engine ECU speed signal comes from the dash / combination meter.

Not directly from the sender on the gearbox.

Page 5 etc
http://www.autoshop101.com/forms/h36.pdf

I.e. I would suggest that you find the speed signal output from the dash, and send that to the Engine ECU (In the 'factory fashion').

And use a 'normal' speedo cable to get the speed signal to the dash / combination meter (again in the 'factory fashion' for that car ).

Hope this helps

Cheers
Wilbo

[lexsmaz]

I am not the best one to answer this question ..

But what i did in my case is i hooked up a 4 pulse generator onto my speedo output on the box .. My pulse generator came with a short speedo cable & connector that screwed onto the g/box, it had an outlet fitting which i then attached my existing, but now shortened speedo cable to ..

The pulse output from the pulse generator was then routed up into the car & attached to the appropriate wire on the ECU ..but as you can tell i dont remember which wire it was & was advised what wire to hook iit up to initially ..

That was on my mazda runing a 1uz and crown auto ..

Hope that helps a bit ..

But obviously if you can do it Wilbo's way it would be easier again ..

[TasCressida]

ok im getting under the car tomorrow.im gunna sort it.

lexsmaz where did u get the 4 pulse gnerator from? that maybe the way
cause i dont think i can get a speed signal any where off the MX83 analouge dash cluster.

will take some pics tomorrow!

cheers

[lexsmaz]

The place i got mine from is a called "Ringwood speedometer Service" that sells them here in Melb .. They do all dash instruments & speedo cables, etc ...

their # is 03 9874 2260 ....

Rob ..

[wilbo666]

cause i dont think i can get a speed signal any where off the MX83 analouge dash cluster.

will take some pics tomorrow!

cheers

Toyota put the SPD (Speed) signal pin to the ECU on the body loom plug that goes to the engine ECU. i.e. that plug isn't part of the engine loom (that plug remains when you remove the engine and its wiring). The reason for that is that it comes from the dash cluster...!

I can see how you could interpreted this as sending the signal to the dash... but you are wrong, especially in this case as MA70 runs a cable to the dash (Having a cable and an 'output' (WRONG) from the ECU to the dash to tell the speed would be silly...

i.e. (From TSRM for MA70). See SPD pin...



i.e. (from TSRM), See speed sensor being in combination meter...



If you don't understand that is fine. If you want to disagree / ignore me that is also fine

Just trying to help

Cheers
Wilbo

[TasCressida]

awesome wilbo! cheers
my wiring guy seems to understand it lol ... me not so much ....

hopefully we can get it fixed with that diagram!

+rep for yall!

[hu5tln]

hey guys thanks so much for all your help so far i'm goin to find out tonite if an 88 hilux instrument cluster has the speed sensor, but in saying that much appreciated!

[thanhngo]

I've seen a speed signal generator circuit on oz-clubbies forums if you keen on building one. It uses a 555 timer and a few other components to trick the computer if you can't manage to find one from the cluster).

[hu5tln]

I've seen a speed signal generator circuit on oz-clubbies forums if you keen on building one. It uses a 555 timer and a few other components to trick the computer if you can't manage to find one from the cluster).

hey dude do you think you could get me more info on this and i can read up abit more on it, cheers kern