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techy1664



Member Since: 21 Sep 2019
Location: Cornwall
Posts: 12
United Kingdom 
Nanocom showing different speed to speedo
Hi
Been using the recently purchased nanocom from the group buy On driving home from work I noticed the Speedo was reading 30mph, satnav reading 32mph and the nanocom was showing 45mph. It's basically reading 15mph more than what it should be. Anyone else encountered this and have an idea of where I start with correcting this. The red ECU plug is clear of oil.

Cheers
Post #807872 28th Dec 2019 3:52pm
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4206
United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
Something seems a bit off, all things being equal the Speedo would always read higher than the satnav. 2007 110 TDCi Station Wagon XS
Post #807873 28th Dec 2019 3:54pm
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bankz5152



Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 2162
2004 Defender 110 Td5 DCPU Epsom Green
Sure its in mph not kph Instagram @defender_ventures
Empire Tuning - Agent
Post #807874 28th Dec 2019 4:12pm
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techy1664



Member Since: 21 Sep 2019
Location: Cornwall
Posts: 12
United Kingdom 
AHH, good point. Didn't even think about that. May help if I checked the basics first.
Post #807877 28th Dec 2019 4:33pm
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topless_matt



Member Since: 29 Mar 2015
Location: norfolk
Posts: 68
England 2007 Defender 90 Puma 2.4 HT Tonga Green
Even if in kph it is still out. 50kph is 31mph so something is not quite right. Hold my beer and watch this!
Post #807882 28th Dec 2019 5:33pm
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Stue5



Member Since: 06 Jul 2014
Location: Marche
Posts: 111
Italy 2005 Defender 110 Td5 USW Alpine White
techy1664 do you have a cruise control fitted? Range Rover p38 4.6 99 lpg(gone Sad )
Post #807887 28th Dec 2019 6:11pm
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techy1664



Member Since: 21 Sep 2019
Location: Cornwall
Posts: 12
United Kingdom 
No there isn't cruise fitted.

I'm new to the nanocom so I will have a look through the settings when I get chance in case Ive missed anything. I'm going to look at the wiring diagrams shortly but thought I'd ask on the forum first.
Post #807888 28th Dec 2019 6:18pm
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Notyalc



Member Since: 27 Jul 2018
Location: Northumberland
Posts: 160
United Kingdom 2003 Defender 90 Td5 HT Epsom Green
Nanocom needs to have a correction factor put in to get to mph.
Not sure which menu, but it will be in settings somewhere. Can’t remember if it’s 0.62 to get from kph to mph.
Post #807896 28th Dec 2019 7:27pm
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techy1664



Member Since: 21 Sep 2019
Location: Cornwall
Posts: 12
United Kingdom 
Right o. Will have a look through the settings tomorrow and give an update. Thanks for the help.
Post #807897 28th Dec 2019 7:34pm
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dkmlondon



Member Since: 15 Jun 2018
Location: London and Somerset
Posts: 14
United Kingdom 2006 Defender 110 Td5 XS CSW Cairns Blue
You need to change the speed correction factor on the Nanocom. It’s a bit of trial and error, as my speedo reads fast anyway due to gearing and tyre size. I ended up calibrating Nanocom to mph satnav speed - seemed to make sense! (110 TD5 2006) ********
Best
Duncan
2006 110 Td5 CSW / 2001 90 Td5 ragtop lhd / 2017 Disco sport / XK120
Post #807959 29th Dec 2019 2:29pm
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techy1664



Member Since: 21 Sep 2019
Location: Cornwall
Posts: 12
United Kingdom 
Managed to sort it out. Started at 0.62 as was suggested and ended up at 0.68, seems to match the speedo.
Thanks for the help
Post #807961 29th Dec 2019 2:57pm
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