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In need of Speedometer solution

Started by Bart , Jul 28 2015 10:52 PM

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33 replies to this topic

#1 Bart

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Posted 28 July 2015 - 10:52 PM

So i got a 4l65e auto in a WB Statesman. Just wondering what others have done in similar situation where you have an electronic speedo drive in the gearbox and mechanical speedometer. I have been told about cable-x which is a converter or i can have my mechanical speedometer converted to electronic.
im interested in what others have done

Edited by Bart, 28 July 2015 - 10:54 PM.

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#2 N/A-PWR

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Posted 28 July 2015 - 11:06 PM

Just for thought,

my WB Tonner is all Mechanical,

pink gear with 2.78 Diff.

of-course, not a luxury

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#3 _LS1 Hatch_

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Posted 29 July 2015 - 12:25 AM

I used a cable-X on mine...because I wanted to keep the original speedo. Have seen pics of people who use converted/electronic speedometers as well that didn't look too bad.

Just took a couple goes getting the speed nailed down right but once it was done been fine ever since. There are a heap of dip switches so you can adjust the output for any tire size, diff ratio, etc,etc. (The manual it came with is for MPH so I just converted the output speed again to K's so my speedo reads right on.

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#4 dattoman

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Posted 29 July 2015 - 01:09 AM

GPS Speedo

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#5 _LS1 Hatch_

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Posted 29 July 2015 - 01:20 AM

Don't you guys have speed cameras in tunnels though?

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#6 Bart

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Posted 29 July 2015 - 10:48 AM

Yes mate speed cameras in all sorts of orifices lol

Cable x ay hmmm.
what do they cost?

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#7 ls2lxhatch

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Posted 29 July 2015 - 11:13 AM

Cable-X is the simplest option.

$495 from CRS.

http://www.rodshop.c...t&part_type=129

Around USD $340 plus shipping in the USA.

http://www.abbott-ta...m/orderpage.htm

The weak Australian dollar makes the CRS price reasonable.

Edited by ls2lxhatch, 29 July 2015 - 11:17 AM.

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#8 Bart

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Posted 29 July 2015 - 11:22 AM

Thanks mate

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#9 _LS1 Hatch_

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Posted 29 July 2015 - 11:32 AM

Oh, and the cable that had come with my Cable-x didn't fit the Torana cluster, so I just had a cable made there (Ringwood Speedo in Vic) and worked perfectly then.

Oh, and I got lucky and found mine new in the box at a swap meet...been some years now but think it was like $40 or something from memory.

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#10 _LS1 Hatch_

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Posted 29 July 2015 - 11:35 AM

By the way... Dakota Digital is doing one now too, think it is similar in price to the Cable-X. Haven't used one of theirs but am happy with the tach adapter I got from them at least.

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#11 _LS1 Taxi_

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Posted 29 July 2015 - 11:40 AM

Electronic VDO speedo controlled by the LS1 PCM grafted into the Torana cluster

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#12 Bart

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Posted 29 July 2015 - 11:43 AM

Or in WB cluster in may case

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#13 Sven

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Posted 29 July 2015 - 09:16 PM

I'm copying this VDO speedo conversion.

http://www.gmh-toran...tr-hatch/page-4

It's about half way down the page.

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#14 Bart

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Posted 31 July 2015 - 04:33 PM

Thanks guys

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#15 Bart

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Posted 31 July 2015 - 05:54 PM

The Cable X is connected to the factory speed sensor (I think this is correct) but will the factory speed sensor still be plugged into the factory loom so that if I decide to use the Commodore cruise control i think the PCM would need the speed sensor data.

Thanks

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#16 ls2lxhatch

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Posted 31 July 2015 - 06:14 PM

The transmission speed sensor is connected to the ECU speed input. The Cable X is connected to the ECU speed output which is normally connected to an electronic speedo.

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#17 Bart

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Posted 31 July 2015 - 11:28 PM

Rightyo. Thank you. That makes sense. I thought it replaced the factory speed sensor or spliced into the speed sensor loom.
Thanks mate

The transmission speed sensor is connected to the ECU speed input. The Cable X is connected to the ECU speed output which is normally connected to an electronic speedo.

The speed output should be in my cuicuit diagram

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#18 Bigfella237

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Posted 01 August 2015 - 12:03 AM

~ if I decide to use the Commodore cruise control i think the PCM would need the speed sensor data. ~

You may have trouble with that Bart? LS engined Commodores also take a speed sensor input from the ABS sensor on each wheel, this is not only used for ABS and traction control but appears to affect the speedo as well.

There are many reports of people changing diff ratios in their late-model Commodores and the speedo still reads correct, without changing speedo gears or reprogramming the ECU.

It seems the VSS on the trans feeds the ECU, but that's not what's used to signal the cluster, however I've also read that if there's too much difference between the two systems (like a really low geared diff) it will throw a CEL & fault code, so the VSS must also be used in the equation somehow?

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#19 Bart

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Posted 01 August 2015 - 02:03 PM

Ok, i got the whole commodore so it may be possible to pull the bits thats needed. But this will be later if i do this

You may have trouble with that Bart? LS engined Commodores also take a speed sensor input from the ABS sensor on each wheel, this is not only used for ABS and traction control but appears to affect the speedo as well.

There are many reports of people changing diff ratios in their late-model Commodores and the speedo still reads correct, without changing speedo gears or reprogramming the ECU.

It seems the VSS on the trans feeds the ECU, but that's not what's used to signal the cluster, however I've also read that if there's too much difference between the two systems (like a really low geared diff) it will throw a CEL & fault code, so the VSS must also be used in the equation somehow?

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#20 ls2lxhatch

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Posted 01 August 2015 - 02:08 PM

Which ECU do you have?

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#21 Bart

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Posted 01 August 2015 - 06:35 PM

The one from the LS1 VY Senator

Which ECU do you have?

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#22 Bart

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Posted 02 August 2015 - 02:37 PM

Just took the old girl out for a test drive expecting to shred tires but unfortunately it didn't do much at all, its kind of stuck in top gear! Flatten the pedal to the boards and takes of like a boat very gently. Need some neck snapping action

Would this be related to the computer not knowing the speed of the vehicle? (Speedo not connected yet) I know the elec diagram shows vehicle speed sensor on pin 50 on red connector of computer.
Any ideas?
This is the web page of the Stato/LS1
http://www.gmh-toran...tatesman/page-8

Edited by Bart, 02 August 2015 - 02:41 PM.

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#23 _LS1 Taxi_

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Posted 02 August 2015 - 03:03 PM

Are all the engine and box sensors plugged in?

What PCM do you have? Who removed the VATS from it?

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#24 Bart

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Posted 02 August 2015 - 04:23 PM

This is the type of PCM. I don't know the model of it. But the whole thing is out of a VY Senator 2003
Not sure of all the sensors but the speedo inst plugged in. I wonder if that's the issue.
Some bloke from PCM Hacking deleted the VATS for me.
I know there was a gearbox switch/selector on the side of the gearbox which I removed
http://www.ls1.com.a...-Mapping-Module

The PCM on top
http://www.ultimatec...p?categoryid=15

Edited by Bart, 02 August 2015 - 04:30 PM.