Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
Anyone know how to diagnose a faulty PCB	TwinTurbo	21 Nov 2025, 21:33	Once this week	Electrical & Instrumentation

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Last post

Spotting previous modifications

Last post by bigherb « 16 Aug 2021, 16:42
Replies: 5
by Ragtime.ben » 16 Aug 2021, 07:17

Hi all. So I got my first proper going over of my recently bought 1981 cu Devon yesterday. Sold as not running but will run 😬
Haven’t tried turning...

5 Replies

1188 Views

Last post by bigherb
16 Aug 2021, 16:42
Headlamp aim projected image Mot fail

Last post by Oldiebut goodie « 14 Aug 2021, 13:02
Replies: 1
by glennyboy2 » 14 Aug 2021, 12:52

So, after sitting since 2014 and a year of welding, panel work, mechanical and all the other grief that comes with T25s, I stuck her in for an MOT....

1 Replies

1016 Views

Last post by Oldiebut goodie
14 Aug 2021, 13:02
T25 DG ECU Test

Last post by PaulM99 « 06 Aug 2021, 14:14
Replies: 12
by edconeng » 19 Jul 2021, 13:45

Hi this is my first post.
I have a T25 Syncro 1988 with a 2.1 DG Pertol Engine, I had a gearbox issue and the Bus has been laid up for a few years, I...

12 Replies

1643 Views

Last post by PaulM99
06 Aug 2021, 14:14
Need help on Alternator for CU 2.0l ...

Last post by danisaez « 05 Aug 2021, 06:25
Replies: 6
by danisaez » 03 Aug 2021, 18:20

Hi all,

been through the wiki and searched the web for hours, but to no avail...

I've got a 1980 VW BUS T3 running a CU 2.0l Aircooled engine, my...

6 Replies

1175 Views

Last post by danisaez
05 Aug 2021, 06:25
Horn Upgrade/Fix

Last post by T3luestar « 05 Aug 2021, 04:25
Replies: 3
by johnwayne » 04 Aug 2021, 14:33

The horn on the bus hasn't been working properly since I have had it. Sound is poor and and it quite often doesn't even work when I press it.

Is...

3 Replies

1163 Views

Last post by T3luestar
05 Aug 2021, 04:25
Electronic ignition 2.1 DJ engine

Last post by Titch1959 « 04 Aug 2021, 23:45
Replies: 2
by Titch1959 » 11 Jul 2021, 10:58

Hi everyone

Just had a look at our new van and see that the dizzy, leads and plugs need replacing but wanted to ask if this system supports...

2 Replies

919 Views

Last post by Titch1959
04 Aug 2021, 23:45
Rear wiper not working

Last post by clone123 « 02 Aug 2021, 09:10
Replies: 3
by chriszxr750 » 02 Aug 2021, 08:25

Morning guys
Been a member on and off for years, and normally I can find the solution by searching, but this one has me stumped.
anyway bought a...

3 Replies

1005 Views

Last post by clone123
02 Aug 2021, 09:10
buzzer/altnator

Last post by gary1998 « 31 Jul 2021, 22:10
Replies: 5
by gary1998 » 31 Jul 2021, 20:27

i just replaced an altnator and now have B.O.D on the hipressure switch
well i only have the one ,, oil filter one not connected
van is 1980 but...

5 Replies

1233 Views

Last post by gary1998
31 Jul 2021, 22:10
Early fuse box layout / wiring diagram

Last post by Aidan « 27 Jul 2021, 06:37
Replies: 4
by badgerfax » 12 Aug 2015, 19:08

Evening all you good people,

Does anyone have access to a fusebox layout and wiring diagram for an early bullet fuse box?

I understand that it...

4 Replies

6540 Views

Last post by Aidan
27 Jul 2021, 06:37
Interior lights don't work Help please!

Last post by Mocki « 26 Jul 2021, 18:47
Replies: 8
by cheekyjen » 26 Jul 2021, 15:47

My interior lights suddenly don't work. Have changed the bulbs to no avail. I have checked the fuses. The only one that has gone is no 25. Could this...

8 Replies

1394 Views

Last post by Mocki
26 Jul 2021, 18:47
Temp needle won't move

Last post by clone123 « 25 Jul 2021, 20:58
Replies: 21
by Bryce » 18 Jul 2021, 13:44
1

2
Hi the temp needle on my 1.6 jx just sits stuck at the bottom left of gauge where you can't even see it. From what I've read overheating could do...
21 Replies

3085 Views

Last post by clone123
25 Jul 2021, 20:58
dash clock not working

Last post by NickG58 « 25 Jul 2021, 20:11
Replies: 19
by KOTSY » 10 Nov 2016, 18:57
1

2
hi all. not sure if on the wright forum but here goes . I have a 91 1.6td and the analogue clock has stopped ,any idea s where I can get it repaired...
19 Replies

6564 Views

Last post by NickG58
25 Jul 2021, 20:11
Auto Electrician in Sheffield

Last post by jrt « 23 Jul 2021, 21:01
Replies: 1
by Stephen255 » 23 Jul 2021, 19:56

Looking for recommendations for an auto electrician in Sheffield.

1 Replies

854 Views

Last post by jrt
23 Jul 2021, 21:01
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

1267 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

2932 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

1591 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

882 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

1162 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

1953 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

984 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

1050 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

905 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

1685 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

3920 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

1754 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

5846 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

1040 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

2934 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

2940 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

1248 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

3014 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

915 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

1079 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

1904 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

1146 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

957 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

567 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

966 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

530 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

770 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

1217 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

3630 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

1045 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

505 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

502 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

1184 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

587 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

1892 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

885 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

1225 Views

Last post by VelmaVan261
13 Jun 2021, 16:52

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