Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
Dashboard PCB Replacement (CJH Design)	The Hairy Camper	11 Apr 2026, 12:29	Once this week	Electrical & Instrumentation
Dashboard PCB Replacement (CJH Design)	Aidan	11 Apr 2026, 07:09	Once this week	Electrical & Instrumentation

Topics

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Last post

Dash instrument light pod name?

Last post by Robsey « 23 Jul 2021, 07:00
Replies: 7
by Shinnster » 22 Jul 2021, 15:16

Hi all

I am in the process of upgrading my dash cluster and have hit a snag! A part of the dash board has got plastic snapped off of it where screws...

7 Replies

1565 Views

Last post by Robsey
23 Jul 2021, 07:00
Timing setup, 2.0 CU Aircooled (video)

Last post by jospanner « 22 Jul 2021, 13:25

by jospanner » 22 Jul 2021, 13:25

Hey there, can you look over my timing setup?
I'm having problems with the van stumbling under acceleration, with low power. But I want to make sure...

0 Replies

3167 Views

Last post by jospanner
22 Jul 2021, 13:25
Solar panel wiring

Last post by Syncronorth « 21 Jul 2021, 20:54
Replies: 5
by Cyrus » 21 Jul 2021, 06:50

I have just received a 100w solar panel for my birthday and purchased a Victron Snartsolar charge controller.
I wish to wire this up to keep my 110ah...

5 Replies

2049 Views

Last post by Syncronorth
21 Jul 2021, 20:54
Glow plug light feed?

Last post by Forden341 « 21 Jul 2021, 18:02
Replies: 2
by Forden341 » 21 Jul 2021, 14:25

Hi all,
I am looking to use the now defunct orange glow plug warning light in my dash pod as a diff lock warning light. Does anyone happen to know if...

2 Replies

1074 Views

Last post by Forden341
21 Jul 2021, 18:02
Coolant Temp Sensor Plug shape - What's it called?

Last post by ianders « 19 Jul 2021, 13:45
Replies: 4
by ianders » 18 Jul 2021, 10:37

Looking for the female plug that goes onto the round 2-pin temperature sensor. Currently have 2 spade connectors on the wires which are quite loose...

4 Replies

1436 Views

Last post by ianders
19 Jul 2021, 13:45
Electrical crimp terminal cleaning tip

Last post by CovKid « 18 Jul 2021, 19:49
Replies: 1
by silverbullet » 17 Jul 2021, 17:55

Probably an old one but worth noting as I saw this on YouTube today thanks to Edd China.
A two-stage process and useful for cleaning damp/salt...

1 Replies

2578 Views

Last post by CovKid
18 Jul 2021, 19:49
2.0L petrol air-cooled CU distributer

Last post by sarran1955 « 15 Jul 2021, 20:03
Replies: 1
by banjax34 » 15 Jul 2021, 18:05

Does any one refurbish the CU distributer or is there a replacement? I seem to have too much play in mine and on idle the timing mark is very...

1 Replies

1174 Views

Last post by sarran1955
15 Jul 2021, 20:03
Erratic aftermarket gauges - power supply issue?

Last post by AngeloEvs « 15 Jul 2021, 18:54
Replies: 5
by jospanner » 15 Jul 2021, 15:01

Hi,
I have an aftermarket oil gauge and tachometer for my 1981 2.0 Aircooled.

I am finding that they both act very erratic:
The oil gauge is fine...

5 Replies

1332 Views

Last post by AngeloEvs
15 Jul 2021, 18:54
Empty plug behind dash?

Last post by Shinnster « 14 Jul 2021, 23:47
Replies: 2
by Shinnster » 14 Jul 2021, 14:45

I have been trying to find the issue as to why my temp and fuel gauges don't work and when i had the dash out I have noticed this empty plug. It is...

2 Replies

1134 Views

Last post by Shinnster
14 Jul 2021, 23:47
Dizzy Wiring

Last post by Evil Elsie « 14 Jul 2021, 07:40
Replies: 12
by Evil Elsie » 13 Jul 2021, 16:42

Hey Folks,
I've just bought a Powersparks Dizzy, Coil and Lead set and have a question...

A Green and a Black wire from the Ignition...

12 Replies

2225 Views

Last post by Evil Elsie
14 Jul 2021, 07:40
Blower Motor PWM Upgrade

Last post by CovKid « 13 Jul 2021, 20:53
Replies: 7
by Splurt » 13 Apr 2021, 21:54

I had been putting this job off for a while but has Easter week off so managed to get the dash out without much hassle. The heater box on the other...

7 Replies

5408 Views

Last post by CovKid
13 Jul 2021, 20:53
Ashtray Gauges

Last post by DoubleOSeven « 11 Jul 2021, 12:22
Replies: 8
by Spailpin Fanach » 30 Jun 2021, 08:58

Hi all.

I thought I might install the following in place of the existing unused ashtray.

I also thought I might change the gauges to coolant...

8 Replies

2185 Views

Last post by DoubleOSeven
11 Jul 2021, 12:22
Oil Pressure Switch Location? 1.6Diesel 1990

Last post by Herm « 08 Jul 2021, 20:34
Replies: 9
by Herm » 07 Jul 2021, 15:36

Hi,

Me again. Could someone tell me where I can find the oil pressure switches on an 1.6d 1990 California? I'll be damned if I can find both. I...

9 Replies

7764 Views

Last post by Herm
08 Jul 2021, 20:34
Leccy Fuel pump and Relay advice

Last post by Mocki « 08 Jul 2021, 20:12
Replies: 4
by Stesaw » 06 Jul 2021, 12:56

So before I fit my 2.1 I need to fit a electic fuel pump.
I will be running on carb and I've already got the pump.
I also have a tracker fitted with...

4 Replies

1296 Views

Last post by Mocki
08 Jul 2021, 20:12
Aftermarket oil gauge problem

Last post by jospanner « 06 Jul 2021, 14:01

by jospanner » 06 Jul 2021, 14:01

Hi, I have wired up an aftermarket (Eluto, so might as well not have any brand) oil pressure gauge.

It seems to give reasonable values, but that's...

0 Replies

3191 Views

Last post by jospanner
06 Jul 2021, 14:01
1.6 jx td temp sensors wiring

Last post by Rascal « 06 Jul 2021, 07:27

by Rascal » 06 Jul 2021, 07:27

Currently on a 5 week uk tour with work dotted in between . van has been faultless untill yesterday when temp gauge became intermittent and lower...

0 Replies

3212 Views

Last post by Rascal
06 Jul 2021, 07:27
Wiring Diagram & Fuse Box/Oil Pressure Buzzer

Last post by AngeloEvs « 05 Jul 2021, 11:22
Replies: 8
by Herm » 03 Jul 2021, 20:42

Hi,

I have a 1990 California and looking for a wiring diagram? I can't see to find one anywhere. I'm having trouble with indicators not working...

8 Replies

1624 Views

Last post by AngeloEvs
05 Jul 2021, 11:22
Victron Super Cycle batteries

Last post by Spailpin Fanach « 04 Jul 2021, 10:31

by Spailpin Fanach » 04 Jul 2021, 10:31

Wondering if anyone has experience of these batteries. They're way cheaper than good quality LiFePO4 ones and would save a lot of space. One 125Ah...

0 Replies

3272 Views

Last post by Spailpin Fanach
04 Jul 2021, 10:31
Indicator not working on one side

Last post by Oufx81 « 03 Jul 2021, 18:42
Replies: 2
by Oufx81 » 03 Jul 2021, 15:21

Hi all, 1981 Aircooled, left turn signal is not working both front and rear, no clicking noise either. Right it’s absolutely fine.

Does anyone know...

2 Replies

1151 Views

Last post by Oufx81
03 Jul 2021, 18:42
Coolant Temp Sender Connector

Last post by Robsey « 03 Jul 2021, 08:56
Replies: 3
by Syncronorth » 22 Jun 2021, 17:27

Where can I find the connector / plug for this sensor?

251 919 501

3 Replies

1353 Views

Last post by Robsey
03 Jul 2021, 08:56
Is this an earthing problem?

Last post by killerme « 02 Jul 2021, 15:39
Replies: 9
by killerme » 01 Jul 2021, 12:28

To enable welding beneath the water tank, I had to take out the rock n' roll seat and the water tank unit. When refitting I forgot about rebuilding...

9 Replies

2392 Views

Last post by killerme
02 Jul 2021, 15:39
Start Problem

Last post by fresco3000 « 01 Jul 2021, 13:35
Replies: 6
by fresco3000 » 28 Jun 2021, 10:51

Hi Guys,

I’ve had this ongoing issue starting my van.

When i turn the key there’s a moment where nothing happens then it kicks in. A delay.

Given...

6 Replies

1448 Views

Last post by fresco3000
01 Jul 2021, 13:35
Tacho install, old van

Last post by jospanner « 01 Jul 2021, 11:32
Replies: 3
by jospanner » 01 Jul 2021, 09:55

Hi,
I am trying to install a tachometer/rev counter into a 1981 air cooled.
My alternator doesn't seem to have a w terminal, and as it's an older van...

3 Replies

1191 Views

Last post by jospanner
01 Jul 2021, 11:32
Odometer not working

Last post by AngeloEvs « 30 Jun 2021, 17:34
Replies: 1
by petethefeet » 30 Jun 2021, 11:52

Hi all,
This is opposite to another thread recently.
Speedo needle indicates the correct speed (as close as it has ever been) but the odometer has...

1 Replies

887 Views

Last post by AngeloEvs
30 Jun 2021, 17:34
Which Loom goes through which hole?

Last post by Robsey « 30 Jun 2021, 01:17
Replies: 14
by Robsey » 28 Jun 2021, 14:00

Hi All,

I am still in the very early stages of the restoration / rebuild of my 1983 van.
It was converted in the late 80s to a camper van - a very...

14 Replies

1555 Views

Last post by Robsey
30 Jun 2021, 01:17
Speedo inop

Last post by AngeloEvs « 28 Jun 2021, 16:41
Replies: 3
by WILKS » 27 Jun 2021, 20:19

1986 1.6 jx
My speedo had packed up , fitted a new cable now only the odometer works ,no speed needle movement is this repairable ?

3 Replies

784 Views

Last post by AngeloEvs
28 Jun 2021, 16:41
VW T25 smoke from dash

Last post by Aidan « 28 Jun 2021, 07:25
Replies: 5
by Ellie1995 » 27 Jun 2021, 18:45

Hi,

I need some advice and help.

1988 VW T25 autohomes komet Mark 1 water cooled petrol

So the situation is... I went to start the van the other...

5 Replies

1050 Views

Last post by Aidan
28 Jun 2021, 07:25
Main socket & extensions

Last post by Mocki « 27 Jun 2021, 18:20
Replies: 9
by Wearside wanderer » 24 Jun 2021, 16:32

Hi
1st post sure not even sure if this is the correct place!
Had a wee look on wiki and can’t seem to find an answer so now I’m venturing into the...

9 Replies

1603 Views

Last post by Mocki
27 Jun 2021, 18:20
Zig cf8 not working replacement or repair

Last post by AngeloEvs « 26 Jun 2021, 00:13
Replies: 11
by M13esy » 02 Jan 2021, 16:28

Hi,my zig unit in my van has never been wired up in the process off doing now,I’ve checked all fuses and got a new battery but when we connected the...

11 Replies

5143 Views

Last post by AngeloEvs
26 Jun 2021, 00:13
Battery

Last post by Jim San « 24 Jun 2021, 09:25
Replies: 7
by Poundsland » 22 Jun 2021, 18:47

What the best battery to get for myt25 to seat under driver seat and best price can someone help

7 Replies

1395 Views

Last post by Jim San
24 Jun 2021, 09:25
Off side (right) indicators not working

Last post by sweetaswesty « 23 Jun 2021, 16:58
Replies: 2
by sweetaswesty » 23 Jun 2021, 13:29

I've got the dash back in after replacing the heater blower motor, tidying up wiring, cleaning earth crowns, etc. and most things are basically...

2 Replies

705 Views

Last post by sweetaswesty
23 Jun 2021, 16:58
Starter battery, leisure battery & hookup

Last post by TONYT25T25 « 23 Jun 2021, 15:55
Replies: 2
by timscarth » 23 Jun 2021, 10:52

Hi, my first post since joining the club.

We bought our T25 (Holdsworth Villa 1) last week and I've been doing some general bits & pieces& getting...

2 Replies

711 Views

Last post by TONYT25T25
23 Jun 2021, 15:55
Plug that connects to ignition switch?

Last post by HeloEngineer « 22 Jun 2021, 13:11
Replies: 10
by @HeloEngineer » 21 Jun 2021, 16:01

Hi all!

My van got stolen, luckily I have got it back.
They have cut the wiring below the ignition switch to start it. Ergo I require the plug which...

10 Replies

1873 Views

Last post by HeloEngineer
22 Jun 2021, 13:11
Heater cable routing and troubleshooting

Last post by Beemsquar « 22 Jun 2021, 06:11
Replies: 2
by Beemsquar » 18 Jun 2021, 19:50

Hi all,
I am aware that this subject has been asked a thousand times, but no in those posts I can't find the information I am after.
I have a 1983...

2 Replies

908 Views

Last post by Beemsquar
22 Jun 2021, 06:11
Alternative to zig unit and number of connectors on leisure battery

Last post by mariner « 21 Jun 2021, 17:56
Replies: 12
by mariner » 12 Jun 2021, 11:35

Hi all. So van is due back from the bodyshop in a few weeks and I'm trying to get my head around the electrical set up I want. Current set up is as...

12 Replies

3225 Views

Last post by mariner
21 Jun 2021, 17:56
Key In warning - Just an idea.

Last post by Robsey « 17 Jun 2021, 16:53
Replies: 4
by Robsey » 11 Jun 2021, 11:04

After watching another one of Italjohn's videos on you tube, I came up with this idea.

Firstly - the video link.

It is to add an ACC position to...

4 Replies

1317 Views

Last post by Robsey
17 Jun 2021, 16:53
Battery for 81 t25

Last post by VelmaVan261 « 13 Jun 2021, 16:52
Replies: 5
by tyhurstey » 11 Jun 2021, 20:11

Hey friendly people! I'm so new tk. This but have bought a 1981 ct vwt25. I need a main and leisure battery, I'm a photographer so need good juice!...

5 Replies

1555 Views

Last post by VelmaVan261
13 Jun 2021, 16:52
Rcd Fuse Box

Last post by clone123 « 13 Jun 2021, 13:16
Replies: 9
by clone123 » 06 Jun 2021, 16:12

Hi can someone recommend a new rcd fuse box for my van as I think mine is faulty as when I press the test button nothing happens

9 Replies

1388 Views

Last post by clone123
13 Jun 2021, 13:16
Slow cranks and battery gets drained in a couple of attempts

Last post by fernsd « 10 Jun 2021, 08:32
Replies: 14
by fernsd » 04 Jun 2021, 21:08

Hi all,

I am having starting problems on my T25 1.9L petrol.

Generally starts off well but randomly does this thing where it cranks really slow....

14 Replies

2509 Views

Last post by fernsd
10 Jun 2021, 08:32
Zig CF8 - Installing a battery guard

Last post by AngeloEvs « 07 Jun 2021, 19:27
Replies: 3
by ledixon » 07 Jun 2021, 13:30

Hi all,

I've just installed a new leisure battery and would like to install a battery guard to stop this one from ending up dead too. I have a Zig...

3 Replies

1146 Views

Last post by AngeloEvs
07 Jun 2021, 19:27
Alternator not charging - wiring at starter?

Last post by mr_nunn « 06 Jun 2021, 15:07
Replies: 3
by mr_nunn » 06 Jun 2021, 13:28

Hi,
We're out camping and battery was flat on arrival. Luckily now recharged from solar panel, but not charging when running (<13v at battery when...

3 Replies

1144 Views

Last post by mr_nunn
06 Jun 2021, 15:07
Speed Sensor ?

Last post by AngeloEvs « 05 Jun 2021, 19:41
Replies: 4
by AngeloEvs » 04 Jun 2021, 16:59

I assume this is a speed sensor, if not what is it?

Someone has removed the wires and has asked me if the Brown wire goes to the top or bottom...

4 Replies

971 Views

Last post by AngeloEvs
05 Jun 2021, 19:41
'81 2 litre air cooled oil pressure switch location

Last post by bigherb « 04 Jun 2021, 17:06
Replies: 2
by jospanner » 04 Jun 2021, 15:15

Hi,
Embarrassing problem, but I can't find the oil pressure switch! Cant see anything under the engine between the push rod tubes (as ive seen...

2 Replies

725 Views

Last post by bigherb
04 Jun 2021, 17:06
rev counter well maybe

Last post by AngeloEvs « 02 Jun 2021, 19:55
Replies: 3
by Brismike » 20 May 2021, 22:20

hi just a quick question if okay, i have a 1.9 petrol its a 1986 it has push on speedo and horizontal connector, my temp gauge dosnt work so was...

3 Replies

913 Views

Last post by AngeloEvs
02 Jun 2021, 19:55
'Coolant shortage indicator' (low coolant level circuit)

Last post by DevonAid « 01 Jun 2021, 13:33
Replies: 5
by DevonAid » 30 May 2021, 10:44

Morning all, hope we've been enjoying the Bank Holiday sunshine?

I have a slight weep on the above sensor (through the terminals) in the pressurised...

5 Replies

4113 Views

Last post by DevonAid
01 Jun 2021, 13:33
Pierburg heaters and cut-off valve wiring "Haynes style" + thermoswitches

Last post by bambily « 31 May 2021, 19:36
Replies: 4
by bambily » 30 May 2021, 22:13

(E D I T: Sorry, wrong forum!)

1. In posts on this forum and on multiple images I've found when looking for how to wire the manifold heater, carb body...

4 Replies

1683 Views

Last post by bambily
31 May 2021, 19:36
Dash lights dimmer issue (solved)

Last post by Robsey « 28 May 2021, 16:17
Replies: 8
by Paul773car » 27 May 2021, 23:24

Evening all

So tonight I pop out in the van to pick up my daughter and I have no illumination on the dash. So I can't see the speedo or the fuel...

8 Replies

1671 Views

Last post by Robsey
28 May 2021, 16:17
Drop in voltage when lights on

Last post by Robsey « 28 May 2021, 07:21
Replies: 3
by TONYT25T25 » 27 May 2021, 20:01

I recently replaced my fluorescent strip lights with a much brighter LED strip light, more for a bit of a project than necessity, however the LED are...

3 Replies

1026 Views

Last post by Robsey
28 May 2021, 07:21
Zig CF8 Split Charge Wiring

Last post by ledixon « 27 May 2021, 18:18
Replies: 2
by ledixon » 27 May 2021, 15:12

Hi All, I have a Zig CF8 unit in my van and an ignition-triggered relay split charger. I'm trying to clean up the wiring and checking everything over...

2 Replies

1006 Views

Last post by ledixon
27 May 2021, 18:18
‘CFD, electrical fault finding and locations’

Last post by clift_d « 26 May 2021, 20:44
Replies: 2
by clift_d » 26 May 2021, 19:20

Has anyone got a copy of this Workshop Manual in PDF format that they could share? Oil pressure is fine, oil pressure sensors are working fine, but...

2 Replies

813 Views

Last post by clift_d
26 May 2021, 20:44

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