1jz electric speedo

[BOHO]

Hey guys,

I bought a full set of aftermarket electric Marshall gauges for my 1jz. I was hoping that I could use the electric speed sensor already in the r154 but I'm not sure if this is possible. Everyone I know that has gone to an electric speedo has had the mechanical unit and used an adapter. I tried to search for it but came up empty. Any advice would be helpful. Thanks in advance.

This is what it looks like in my 87 Starion.

 

[ifyouaint1sturlast]

You'd need to check how many pulses that speedometer takes.

I can tell you that the electronic JZ sensors use a 4ppr signal. That's four pulses per rotation of the gear.

 

[steven89]

I wanted to do a 240sx 1jz swap a while back so heres what I remember for doing that. Im sure its fairly similar.

You have to get this -
http://www.marlincrawler.com/transfer-case/parts-upgrade/vehicle-speed-sensor-mci
Thats the speed sensor that will convert from toyota speedo gear to a electronic signal. Then you need this -
http://www.summitracing.com/parts/DAK-SGI-5
This piece will take the speed sensor signal and make it useable for your car.
Im pretty sure thats all you need to make your speedometer work.

I think you may need to do something for the tachometer as well. You do for the 240sx atleast. But anyways, have fun with the speedometer!

 

[BOHO]

I have the unit on the bottom. I'm curious if my speedo will read this directly or If i need to go the mechanical/marlin adapter route.

 

[steven89]

I have the unit on the bottom. I'm curious if my speedo will read this directly or If i need to go the mechanical/marlin adapter route.

I would guess you can make that one work, but i think you still may need that Dakota speedo converter thing to get the right signal/pulses. Could just plug in the Toyota one and see if it works?

 

[BOHO]

From my new aftermarket electric speedo:


Speedometer will work with any OEM or aftermarket speed sensor or electronic module that meets the following conditions:

1.Pulse range generated proportional to the vehicle speed
2.Signal with minimum 3V peak to peak signal - typical for 3-wire hall effect and 2 wire vehicle speed sensor outputs
3.output of 4,000 to 200,000 pulses per mile (most senders are 16,000 ppm)

I was going to try the pin labled SDP but I'm just grasping at straws.....

 

[ifyouaint1sturlast]

The text says you need a two wire signal. You can use SP2+/SP2- or SP1/E2 I believe.

I've given you information to help in my previous post. The posts below mine are redundant and useless. You need to figure out if your gauge will work with a 4ppr signal, or just hook it up and see. If your JZ is wired correctly, there should be the SP1 signal going to your dash through the M1 plug. Pink wire if I recall correctly. Or just tap into the SP2 signals assuming your trans has the secondary speed sensor installed. Not all of them do (I'm not sure auto vs manual)

As for the sensors, all the MC unit does is convert the gear to an electronic unit. The signal from the original electronic unit is identical. Don't waste your money.

 

[BOHO]

You posted a link to an mechanical speedo adapter that I don't have....My trans does not have the mechanical unit....How is it redundant and useless? I knew how to go that route as everyone already has...What I don't know is where to find the mechanical unit...I guess thanks for the replys.....

 

[ifyouaint1sturlast]

You posted a link to an mechanical speedo adapter that I don't have....My trans does not have the mechanical unit....How is it redundant and useless? I knew how to go that route as everyone already has...What I don't know is where to find the mechanical unit...I guess thanks for the replys.....

I didn't post any links.

I detailed in my post above what signals to use

 

[BOHO]

I'm sorry,

I don't have anything hooked up to the dash as this 1jz/r154 is in a 1987 Mitsubishi Starion.

 

[steven89]

The text says you need a two wire signal. You can use SP2+/SP2- or SP1/E2 I believe.

I've given you information to help in my previous post. The posts below mine are redundant and useless. You need to figure out if your gauge will work with a 4ppr signal, or just hook it up and see. If your JZ is wired correctly, there should be the SP1 signal going to your dash through the M1 plug. Pink wire if I recall correctly. Or just tap into the SP2 signals assuming your trans has the secondary speed sensor installed. Not all of them do (I'm not sure auto vs manual)

As for the sensors, all the MC unit does is convert the gear to an electronic unit. The signal from the original electronic unit is identical. Don't waste your money.

How are my posts that point him to a known working mechanical to electronic speedo configuration conversion "redundant and useless"? Way to be on your high horse there Ricky Bobby (ifyouaint1sturlast), also doesn't really promote forum discussion by saying things like that.. You did notice that he also asked where to find the mechanical to electronic conversion stuff in the first post, right?

@ BOHO
If you need a mechanical unit, post up on the WTB section here.. I actually have an extra one lying around if youre interested, shoot me a PM if you are.

 

[ifyouaint1sturlast]

He. Doesn't. Need. The. Mechanical. Unit.

This is why I am frustrated and on my "high horse".

He has everything he needs. The electronic sender, and the electronic speedometer.

You need to hook the electronic sender to power, ground, and feed the signal to the ecu and speedometer.

Where does a mechanical unit come into play?

 

[BOHO]

He. Doesn't. Need. The. Mechanical. Unit.

This is why I am frustrated and on my "high horse".

He has everything he needs. The electronic sender, and the electronic speedometer.

You need to hook the electronic sender to power, ground, and feed the signal to the ecu and speedometer.

Where does a mechanical unit come into play?

I'll try to hook it up the way you said this weekend. We'll see how it goes. I just havn't found anyone doing an r154 swap using the electric unit I have.

I was thinking I would have to have a signal coming "from" the ecu and nothing thinking of the signal from the sender itself. Thanks.

 

[soapra]

He. Doesn't. Need. The. Mechanical. Unit.

This is why I am frustrated and on my "high horse".

He has everything he needs. The electronic sender, and the electronic speedometer.

You need to hook the electronic sender to power, ground, and feed the signal to the ecu and speedometer.

Where does a mechanical unit come into play?

:withstupi

you are on the right track.

 

[ifyouaint1sturlast]

:withstupi

you are on the right track.

Jose, I can't tell if you're being serious or sarcastic..

 

[steven89]

He. Doesn't. Need. The. Mechanical. Unit.

This is why I am frustrated and on my "high horse".

He has everything he needs. The electronic sender, and the electronic speedometer.

You need to hook the electronic sender to power, ground, and feed the signal to the ecu and speedometer.

Where does a mechanical unit come into play?

You. Could've. Just. Said. That. In. Your. First. Post. Instead. Of. Being. A. Douche. About. It.

And I was still just explaining the "Mechanical conversion" route. Never really input on using the Toyota sensor he already had.

Look at it this way.. if you had just said that he could just plug it in to ecu and speedo on your first post, then the topic would've been done/solved a heck of a lot faster instead of you getting frustrated in the first place. Doesn't hurt to shed the initial information instead of beating around the bush with it, then i'll learn something instead of having to argue to do so!

 

[BOHO]

Ready to try it out.

 

[ifyouaint1sturlast]

You. Could've. Just. Said. That. In. Your. First. Post. Instead. Of. Being. A. Douche. About. It.

And I was still just explaining the "Mechanical conversion" route. Never really input on using the Toyota sensor he already had.

Look at it this way.. if you had just said that he could just plug it in to ecu and speedo on your first post, then the topic would've been done/solved a heck of a lot faster instead of you getting frustrated in the first place. Doesn't hurt to shed the initial information instead of beating around the bush with it, then i'll learn something instead of having to argue to do so!

You can keep trying to blame me and I will just keep proving you wrong. You posted links to devices that would convert one thing into another and end up with the same signal he would get from the sensor he said he was using in his original post. Admit you were wrong like a man and move on. You misread his original post. Then when I stepped in you got offended and started a pissing match. Nobody mentioned the ECU (including you) until you were already out of the equation. Everyone is wrong at some point and nobody is holding it against you. I just did not want to confuse the OP.

@BOHO: Looks good man! Let us know how it goes

 

[steven89]

You can keep trying to blame me and I will just keep proving you wrong. You posted links to devices that would convert one thing into another and end up with the same signal he would get from the sensor he said he was using in his original post. Admit you were wrong like a man and move on. You misread his original post. Then when I stepped in you got offended and started a pissing match. Nobody mentioned the ECU (including you) until you were already out of the equation. Everyone is wrong at some point and nobody is holding it against you. I just did not want to confuse the OP.

The first set of "devices" I posted was for the mechanical conversion he asked for some info on.
Then in this part (below) Where i was replying to him saying that he had a electronic sensor, not a mechanical gear. I only stated that he MAY need the converter to get the signal to the right pulses as you stated (which was 4ppr according to you).

I would guess you can make that one work, but i think you still may need that Dakota speedo converter thing to get the right signal/pulses. Could just plug in the Toyota one and see if it works?

Also note that I said to try to plug in the toyota one. But I can/will easily admit that im wrong and don't know anything about the electronic speedo stuff, as ive never dealt with one. But im just trying to make you understand that instead of going "The posts below mine are redundant and useless." you could've gone "You dont need any of that crap steven89 mentioned, you can do with what you have..." I honestly don't see where the "pissing" contest ever started, I simply commented or "got offended" in the way that you referred to my posts. Basically just thought the comment on my useless (I agree) information was a bit harsh and uncalled for.

@BOHO Loving the gauge colors! Let us know how it goes!

 

[soapra]

I'm going to grab the pop corn...