Thread: Truspeed not staying true

Originally Posted by twr7cx

Tried both settings, same deal.




Your point?





I am running 32" tyres. I have set it to be accurate at 40, 50, 60, 70, 80 and 100km/h. When I finished tuning it, it was accurate at all those speeds within 1-2km/h.
Came back the next day and it was out. Readjusted it. Next day it was out again.
I tried Setting 2. Set that. Came back the next day and the speedo was reading too slow. The day after the speedo was reading too fast. This morning it was accurate again and by this afternoon it was out again.

It only excepts calibration at ONE speed, 100kph is the best speed to set it too.

Baz.

I tried Setting 2. Set that. Came back the next day and the speedo was reading too slow. The day after the speedo was reading too fast. This morning it was accurate again and by this afternoon it was out again.[/QUOTE]





I am having the same drama, I brought mine from the same supplier a few weeks ago.

once calibrated it stays in tune till you turn the ignition off & as above it will either be too slow or too fast on the next start up but after 15 to 20 mins of driving it goes back to where it was calibrated to.

im thinking its a faulty batch or the design has changed and it needs a full time power source to retain it's memory.

Roger

Originally Posted by Redback

It only excepts calibration at ONE speed, 100kph is the best speed to set it too.

Baz.

Personally, I have not found this to be true. When I have calibrated by unit, I have found it to be accurate at all speeds from 40 - 100km/h within a 1-2km/h error margin.
I have found this on at least 4 occasions.

According to the official instructions from 4x4DE:

It is our recommendation that speed checks are done at 60Km/h, 80km/h and at 100km/h. In some vehicles the change in speed is not linear so if you set the TrueSpeed to be accurate at 60km/h the actual speed at 100km/h could be inaccurate. So it is our suggestion to under calibrate the unit. Further to this the installer should calibrate the unit against an accurate GPS system as mentioned previously.

It is only in some vehicles that the speed is not linear. Perhaps I'm somewhat lucky with mine.

Hi all,

I have only been brought to the attention that there are some issues with the TrueSPeed unit. I've read the threads and all I can say that we are trying the best we can to resolve it with the manufacturer. For future discussions about the issue we will be happy to address them via our email sales@4x4de.com.au that way we will know about it sooner.

Emails have been sent to the manufacturer so we are hoping for some sort of resolution to the problem shortly. Sorry for the time delay however it is at times difficult dealling with different time zones.

This is the first time over the last 8 years that we have been selling this product that we have come up with this issue so we will do all we can to resolve it.

Again thank you for your patience and we'll have an answer for you shortly

Cheers,

Michael

I have a Scan gauge in my RRS and have setup the speed section against my GPS - is always within 1/2 kph at all speed ranges. I have the scangauge set up just under the instruments and I use the speed function over the cars speedo all the time - the cars speedo is reasonably accurate but a bit hard to read - scangauge is clear and accurate.

Garry

Originally Posted by twr7cx

Personally, I have not found this to be true. When I have calibrated by unit, I have found it to be accurate at all speeds from 40 - 100km/h within a 1-2km/h error margin.
I have found this on at least 4 occasions.

According to the official instructions from 4x4DE:



It is only in some vehicles that the speed is not linear. Perhaps I'm somewhat lucky with mine.

OK well you keep doing what your doing getting the same result.

Just for your info, I had a truespeed in my D2 for 6yrs, followed Slunnies instructions and never had a problem, mine was set to 100kph and was dead accurate for the 6yrs

Baz.

Hi all,

For those who have faulty Truespeed units could you please contact "sales@4x4de.com.au" as there is now a resolution to the problem.

Thanks,

Mike

Hello.

I've been watching this thread with interest and ask if anyone has yet had the chance to implement smoothy629's solution, albeit might be a bit too soon. But if so, did it work and is it accurate over the full speed range? I ask as I have slightly larger than std tyres and although I do have an accurate GPS installed I'm a fussy bugger and still want my speedo to read correctly.

Hopefully the fix will work and has been installed in all new Truspeed units.

Regards,

Peter