LX dash lights and quad gauge issue
#1
Posted 05 April 2020 - 05:17 PM
#2
Posted 05 April 2020 - 06:59 PM
Disconnect the ground wire of the regulator from your existing harness and just run a totally dedicated ground wire for the voltage regulator and that will solve your issue.
Edited by hanra, 05 April 2020 - 07:06 PM.
#3
Posted 05 April 2020 - 07:23 PM
#4
Posted 05 April 2020 - 07:46 PM
When I re-did my entire harness I cleaned up each and every individual terminal and socket of every connection point. So I was surprised to see an issue with grounding.
#5
Posted 05 April 2020 - 08:31 PM
#6
Posted 05 April 2020 - 08:42 PM
There is already a dedicated earth cable from engine block to NEG on the battery. And then as part of the same cable, from NEG on the battery to the body where the radiator mounting bolts are. The headlights share the earth points from memory.
All the bare earth points on the body and every single plug and socket was treated with Deoxit spray.
https://www.mektroni...spray-142g.html
Edited by hanra, 05 April 2020 - 08:46 PM.
#7
Posted 06 April 2020 - 05:57 PM
I am still curious to understand what an acceptable voltage drop would be across the various grounding points on the car. In my process of trying to resolve this issue I measured voltage drop with headlights on high beam, heater fan on speed 2, dash lights full brightness and from battery negative to:
- chassis ground it was 0.05v
- driver headlight ground 0.075v
- steering column bolt 0.08v
- new voltage reg ground 0.08v
- heater fan ground in engine bay 0.1v
Am I right in thinking these are too high?
#8
Posted 06 April 2020 - 09:07 PM
#9
Posted 07 April 2020 - 07:22 AM
- chassis ground 0.4ohm
- driver headlight ground 0.6ohm
- steering column bolt 0.7ohm
- new voltage reg ground 0.8ohm
- heater fan ground in engine bay 0.8ohm
Edited by toryman76, 07 April 2020 - 07:23 AM.
#10
Posted 15 April 2020 - 04:39 PM
#11
Posted 15 April 2020 - 05:36 PM
#12
Posted 15 April 2020 - 08:53 PM
#13
Posted 15 April 2020 - 09:39 PM
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