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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6635
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
The switches appear to do different things on different models of their tachos. On later models there is a single calibration switch (number Cool and the other 7 switches configure the pulses per rev of the input.

This makes sense given what the guys have said above about switches 1 and 2 being set to "ON" along with switch 8 "ON" by default.  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #724758 22nd Aug 2018 8:55am
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dobbo



Member Since: 15 Jul 2018
Location: hornsea
Posts: 4
United Kingdom 2004 Defender 130 Td5 HCPU Chawton White
Hi guys I have sent my tacho back to be checked out,
I don't have oscilloscope available so CAI are going to 're check the tacho for me
Will keep you posted.
Post #724779 22nd Aug 2018 10:14am
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 881
England 2001 Defender 90 Td5 SW Epsom Green
Clive that picture of you reading the ecu where it says tachometer : enabled. Is that a function you can enable/disable or is it always enabled?
Post #724799 22nd Aug 2018 12:58pm
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Clive



Member Since: 21 Mar 2014
Location: Littleborough
Posts: 467
United Kingdom 2004 Defender 90 Td5 X-Tech LE Zambezi Silver
No, it appears to be permanently enabled, certainly can't change it with the Nanocom. I believe it's written into the basic ECU configuration.
Post #724800 22nd Aug 2018 1:00pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6635
United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
Can anyone answer the "spare/unused wires" question above?  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #724802 22nd Aug 2018 1:06pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554
Banging Head

Last edited by dorsetsmith on 22nd Aug 2018 1:30pm. Edited 1 time in total
Post #724805 22nd Aug 2018 1:27pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

Click image to enlarge


Click image to enlarge
Post #724806 22nd Aug 2018 1:29pm
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GerardTd5



Member Since: 03 Aug 2016
Location: almost Germany
Posts: 44
Netherlands 2001 Defender 90 Td5 CSW Epsom Green
I also had two wires left over, the sama as Clive; a red and a red/blue. About these two wires, there is nothing mentioned in the fitting instruction.
Post #724809 22nd Aug 2018 1:48pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554
The wire appear to do different things on different models of their tachos. red/blue wire on different models for coil low side distributor side)petrol engine and white/ black wire for ECU or W on ALT diesel engine , you will find that it has been adapted for this job

SEE page 9 Arrow Rolling Eyes

Last edited by dorsetsmith on 28th Aug 2018 5:57pm. Edited 2 times in total
Post #724847 22nd Aug 2018 3:31pm
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chip butty



Member Since: 12 Mar 2018
Location: manchester
Posts: 8
United Kingdom 2006 Defender 90 Td5 CSW Java Black
Hi, just bought a CIA rev counter from Rimmers.
I saw all the problems that everyone was having & thought that I had better test it before taking apart the dashboard.
The rev counter goes full sweep to test , but has no pulse.
Post #725284 24th Aug 2018 6:05pm
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GerardTd5



Member Since: 03 Aug 2016
Location: almost Germany
Posts: 44
Netherlands 2001 Defender 90 Td5 CSW Epsom Green
then there are now five with an error. Have you already had contact with Rimmers ?
Post #725302 24th Aug 2018 7:38pm
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rallysteve



Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2238
United Kingdom 2002 Defender 110 Td5 DCPU Keswick Green
Has anyone tried Martin's pull-up resistor?

Steve 02' 110 TD5 Double Cab Rebuild Thread
Post #725303 24th Aug 2018 7:42pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 881
England 2001 Defender 90 Td5 SW Epsom Green
I'm doing it this weekend guys! 👍
Post #725305 24th Aug 2018 7:54pm
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 881
England 2001 Defender 90 Td5 SW Epsom Green
All hail Martin Bow down



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Post #725323 25th Aug 2018 7:40am
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LandymanStefan



Member Since: 30 Aug 2017
Location: Surrey
Posts: 881
England 2001 Defender 90 Td5 SW Epsom Green
I will email CAI telling them they're wrong after them telling me there is no need for a pull up.

Maybe you don't need it on vehicles with abs but vehicles without definitely do need it.
Post #725324 25th Aug 2018 7:42am
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