Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
Auxiliary water pump wire	R0B	26 Jul 2025, 20:18	Once this week	Electrical & Instrumentation
Oil pressure light.	BarnyE	26 Jul 2025, 15:00	Once this week	Electrical & Instrumentation

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Last post

Cyrix ct wiring

Last post by Welshclimber « 30 Mar 2024, 10:38
Replies: 3
by Welshclimber » 29 Mar 2024, 20:25

I’m installing a cyrix ct and removing the old relay switch. I have attached the wiring diagram for it. I’ve done most of the wiring but unsure...

3 Replies

1094 Views

Last post by Welshclimber
30 Mar 2024, 10:38
Chicken switch early t25

Last post by huggy76 « 30 Mar 2024, 08:24
Replies: 1
by adrian1975 » 28 Feb 2024, 17:26

Hi all, I thought I would start a thread asking for help in installing a chicken switch in a 25 with torpedo fuses it's a 1984 bus, I know itchys...

1 Replies

1591 Views

Last post by huggy76
30 Mar 2024, 08:24
Radiator fan only working on low speed.3pin plug

Last post by dazzerT251900td « 29 Mar 2024, 18:55
Replies: 5
by dazzerT251900td » 11 Mar 2024, 16:04

Hi There everyone.
I wonder if someone can me work out why my fan only works on low speed when I bridge the wires on the temperature sensor switch...

5 Replies

1445 Views

Last post by dazzerT251900td
29 Mar 2024, 18:55
Leisure battery not charging

Last post by ZsZ « 28 Mar 2024, 05:35
Replies: 13
by AlBundy » 14 Nov 2023, 13:12

I bought a new leisure battery in June, installed it alongside a new Sargent EC155 power control unit, and wired it up correctly, plus added a new...

13 Replies

10433 Views

Last post by ZsZ
28 Mar 2024, 05:35
Indicator/turn signal relay location

Last post by R0B « 27 Mar 2024, 11:15
Replies: 2
by Tinc » 24 Mar 2024, 14:54

Hi, really struggling to find info on the location of the indicator relay. I have a 1983 1.9dg t25 and have nothing but a steady green led when...

2 Replies

1194 Views

Last post by R0B
27 Mar 2024, 11:15
What coil are you running with a 123 Ignition

Last post by Heaver « 24 Mar 2024, 18:06

by Heaver » 24 Mar 2024, 18:06

Hi, just installed a 123 Ignition switch dizzy on my type 4 cu 2.0…. All works great, am currently running it on a modern Bosch blue coil.

Just...

0 Replies

3157 Views

Last post by Heaver
24 Mar 2024, 18:06
SA Grill inner headlamp options?

Last post by zak « 20 Mar 2024, 17:22
Replies: 4
by zak » 17 Feb 2024, 08:28

Inner 5.5” headlamps now seem like the holy grail since I last looked 😳

Reflector has gone on one, what are my options for now and next time please?...

4 Replies

1598 Views

Last post by zak
20 Mar 2024, 17:22
License Plate Lights Not Working

Last post by Robsey « 17 Mar 2024, 18:50
Replies: 4
by The Hairy Camper » 16 Mar 2024, 16:30

Years ago one of my license plate lights went out. It wasn't the bulb so I got a mate who was an electrician to quickly sort it for me before I went...

4 Replies

1370 Views

Last post by Robsey
17 Mar 2024, 18:50
Not T3 (VW Caddy)

Last post by R0B « 14 Mar 2024, 14:23
Replies: 2
by R0B » 14 Mar 2024, 13:33

My mate's 2006 Caddy drains the battery when left overnight. One expert told him it was a duff battery. He replaced it with no change. Another expert...

2 Replies

1138 Views

Last post by R0B
14 Mar 2024, 14:23
Installing aftermarket rev counter / tacho into a petrol T25

Last post by shepster « 14 Mar 2024, 07:08
Replies: 48
by 937carrera » 02 Mar 2018, 20:39
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I spent this afternoon installing a cheap Chinese rev counter into my T25, here's how I did it.

Thanks to slowcoach in this thread who gave me the...
48 Replies

18472 Views

Last post by shepster
14 Mar 2024, 07:08
Temperature gauge

Last post by Raido « 07 Mar 2024, 10:13
Replies: 4
by Raido » 06 Mar 2024, 08:08

Any ideas?
I have hard wired the dash as many of the instruments weren’t working (buzzer of doom, water temp gauge etc).
With the ignition on the...

4 Replies

1324 Views

Last post by Raido
07 Mar 2024, 10:13
Battery keeps dying

Last post by Mocki « 04 Mar 2024, 20:30
Replies: 6
by dogbower » 27 Feb 2024, 17:47

I have a problem with my starter battery.
Van hadn’t been used for a while and the battery went flat, I put on a CTEK charger on a full...

6 Replies

1762 Views

Last post by Mocki
04 Mar 2024, 20:30
Domestic Electrics NON VW.

Last post by maxstu « 04 Mar 2024, 17:50
Replies: 10
by maxstu » 01 Mar 2024, 11:42

Is there any way l can use this internal light switch wiring in lobby, by front door, to run an extended spur, chased into wall, for an exterior twin...

10 Replies

2214 Views

Last post by maxstu
04 Mar 2024, 17:50
Chicken switch ( standard 2 speed fan)

Last post by adrian1975 « 28 Feb 2024, 17:05
Replies: 22
by itchyfeet » 03 Jun 2017, 16:42
1

2
Did this today on stage 2 as both wires are inside the cab and stage 2 is low current as it just feeds a relay
To do stage 1 needs a high current...
22 Replies

8883 Views

Last post by adrian1975
28 Feb 2024, 17:05
Secondary night heater control switch.

Last post by Rosie n' Jim « 27 Feb 2024, 20:28
Replies: 2
by Rosie n' Jim » 27 Feb 2024, 19:10

I have a DL1C compact with a 701 timer controller. The 701 is in the rear of the van within easy reach of the bed, very handy on those chilly...

2 Replies

1189 Views

Last post by Rosie n' Jim
27 Feb 2024, 20:28
Chicken Switch Question

Last post by herman_t25 « 18 Feb 2024, 14:06
Replies: 4
by herman_t25 » 23 Jan 2024, 09:55

Right Folks, I need a chicken switch. I know I know I shouldn't need one if its done properly but I'd like a back up. Reason being end of last year...

4 Replies

1569 Views

Last post by herman_t25
18 Feb 2024, 14:06
Where are all the speedo cables???

Last post by ScienceBoy « 17 Feb 2024, 18:13
Replies: 12
by ScienceBoy » 06 Dec 2023, 08:23

Ours went on our 88 RHD DG and all the suppliers seem to be out of stock for some time. Guess they all get replied from the same place.

Sent from...

12 Replies

8783 Views

Last post by ScienceBoy
17 Feb 2024, 18:13
CI rigid sided pop top solar

Last post by nick.k « 15 Feb 2024, 21:00

by nick.k » 15 Feb 2024, 21:00

Has anyone with an early, rigid sided pop top (double side flaps) fitted solar?

Was wondering how you routed the cables.

Thanks Nick

0 Replies

3138 Views

Last post by nick.k
15 Feb 2024, 21:00
Covkid Gadget!

Last post by mioba « 13 Feb 2024, 19:18
Replies: 9
by CovKid » 10 Feb 2024, 20:32

I'm back, with a gadget that is perfect for any T25. Still around, mostly concentrating on my house and restoring old arcade machines on youtube but...

9 Replies

3222 Views

Last post by mioba
13 Feb 2024, 19:18
Solar panel question

Last post by Rosie n' Jim « 12 Feb 2024, 07:04
Replies: 27
by Stesaw » 26 Jan 2024, 13:21
1

2
Now this might be a stupid question and might be best to ask the manufacturer, but has anyone trimmed the edges of a solar panel? the flexible type...
27 Replies

4367 Views

Last post by Rosie n' Jim
12 Feb 2024, 07:04
Ignition On Issue

Last post by aerovolito « 11 Feb 2024, 11:31
Replies: 4
by aerovolito » 09 Feb 2024, 19:11

88 Westy Diesel. Been standing (inside) for a year.

Battery's good. Van starts on the button and everything works as it should. However, when I turn...

4 Replies

1377 Views

Last post by aerovolito
11 Feb 2024, 11:31
Wiring diagram for adding a wiper relay on early type 25

Last post by callyspoy « 09 Feb 2024, 17:08
Replies: 8
by Bessaboy1949 » 07 Sep 2022, 14:28

Does anyone have the wiring diagram for adding the intermittent wiper relay to an early van, i have wired mine up and it all works apart from the...

8 Replies

2249 Views

Last post by callyspoy
09 Feb 2024, 17:08
Intermittent Wiper early fuse

Last post by callyspoy « 05 Feb 2024, 16:32
Replies: 2
by callyspoy » 05 Feb 2024, 16:13

Hi Folks,
Whilst getting power steering fitted to my '83 Van, i took it upon myself to remove the white plug for the intermittent wiper function on...

2 Replies

1144 Views

Last post by callyspoy
05 Feb 2024, 16:32
Annoying fuel guage fault

Last post by PetenAli « 04 Feb 2024, 21:56
Replies: 2
by PetenAli » 04 Feb 2024, 20:19

Just got back from a trip up to the frozen northern wastes (well, North Pennines actually) and after I went out to fill up, the gauge read as above...

2 Replies

1274 Views

Last post by PetenAli
04 Feb 2024, 21:56
Temp gauge gone from working to working differently (Or not)

Last post by Aidan « 04 Feb 2024, 21:08
Replies: 10
by Middle29 » 29 Jan 2024, 12:57

Previously temp gauge seemed to work perfectly, came up to halfway where the red warning light is consistently.

I had some work done on a blowing...

10 Replies

1670 Views

Last post by Aidan
04 Feb 2024, 21:08
Fuse Board Buzzing

Last post by Doyle « 02 Feb 2024, 17:46
Replies: 11
by Doyle » 26 Dec 2023, 11:05

Hi All,
Hope your well, I’m Luke and we have recently bought a VW 1988 T25, Carvella with a 1.9 Subaru engine.

A couple of questions,
When we are...

11 Replies

3196 Views

Last post by Doyle
02 Feb 2024, 17:46
Cruise control instalation and alternative parts.

Last post by Rascal « 31 Jan 2024, 12:44
Replies: 191
by Rascal » 01 Dec 2020, 15:44
1

…

9

10

11

12

13
Is this the cruise control relay two wires go to the vss (vehicle speed sensor I think) on the speedo. And the other go to a 2 pin connector that...
191 Replies

41862 Views

Last post by Rascal
31 Jan 2024, 12:44
flickering battery light / replace regulator?

Last post by jrt « 29 Jan 2024, 12:53
Replies: 15
by Middle29 » 22 Nov 2023, 09:31
1

2
Just had some work done, new manifold gaskets etc. Also couple of pulleys replaced and new belts etc. I now have a flickering battery light....
15 Replies

15504 Views

Last post by jrt
29 Jan 2024, 12:53
Water temperature gauge and sensor advise.

Last post by Raido « 28 Jan 2024, 08:56
Replies: 2
by Raido » 27 Jan 2024, 15:58

Hi, I have recently purchased a 1987 1.9 Petrol T3. Unfortunately the water temperature gauge doesn’t work and have removed the plug from the sensor,...

2 Replies

1139 Views

Last post by Raido
28 Jan 2024, 08:56
Resistor search. NON VW

Last post by tobydog « 27 Jan 2024, 20:13
Replies: 4
by maxstu » 27 Jan 2024, 06:33

Looking for a replacement four band resistor. Brown/black/yellow/gold is 100K ohms. But how do l determine wattage? I've seen this four band resistor...

4 Replies

1243 Views

Last post by tobydog
27 Jan 2024, 20:13
CE1 Fuse box - Map of G Pins.

Last post by Robsey « 24 Jan 2024, 22:48
Replies: 60
by Robsey » 20 Mar 2021, 11:03
1

2

3

4

5
Hi all,

As part of my conversion from early fuse box to the later CE1 fuse box, I mapped out every single pin in the fusebox.

I found that...
60 Replies

168661 Views

Last post by Robsey
24 Jan 2024, 22:48
Ignition control / amplifier module and wiring?

Last post by R0B « 18 Jan 2024, 17:51
Replies: 2
by MatteT25 » 18 Jan 2024, 17:01

Good afternoon everyone,

I’ve just signed up as I’ve recently acquired my first T25 project and have come to a bit of a stop and would love some...

2 Replies

1239 Views

Last post by R0B
18 Jan 2024, 17:51
Earth straps on a splity

Last post by Porkscratching « 09 Jan 2024, 21:46
Replies: 5
by Porkscratching » 09 Jan 2024, 16:07

Hi folks, my mate on the IoM has a 1954 6volt split screen that can be reluctant to fire up.
He knows the electrics and fuel are in order but even...

5 Replies

2828 Views

Last post by Porkscratching
09 Jan 2024, 21:46
main beam issue

Last post by lexussoarer1996 « 07 Jan 2024, 21:43
Replies: 14
by lexussoarer1996 » 06 Jan 2024, 14:03

Hi , the vehicle is a South African 2.5i with square headlights , i have just discovered the inner high beams do not work , the outer high and all...

14 Replies

14732 Views

Last post by lexussoarer1996
07 Jan 2024, 21:43
Lithium Leisure Battery

Last post by Cecil « 02 Jan 2024, 14:53
Replies: 13
by rollercoaster » 30 Dec 2023, 20:35

As I have two underseat leisure batteries, both dead,
and its the second time I have killed them..
My guess is its lack of use, with a slow drain.

I...

13 Replies

6176 Views

Last post by Cecil
02 Jan 2024, 14:53
Replacing the Westfalia ‘BBB’ charger

Last post by Nelpy « 27 Dec 2023, 15:20
Replies: 4
by clift_d » 12 Aug 2023, 09:50

Has anybody got any suggestions for suitable products that we can look at to replace the Westy BBB (buzzing black box) in our van? The original seems...

4 Replies

13210 Views

Last post by Nelpy
27 Dec 2023, 15:20
Ignition not working when installed

Last post by AlBundy « 23 Dec 2023, 23:21
Replies: 9
by AlBundy » 25 Nov 2023, 15:04

Bit of an odd one for me. When everything is put together, turning the key doesn't start the engine, when I take it apart, it starts ok. I replaced...

9 Replies

11605 Views

Last post by AlBundy
23 Dec 2023, 23:21
No output from Alternator to rev counter

Last post by cobblers « 18 Dec 2023, 12:32
Replies: 4
by Haro1972 » 17 Dec 2023, 20:28

Been struggling with this one for a while .Had the alternator re-conditioned before we went off on holiday hooked it up no output to the rev counter...

4 Replies

2018 Views

Last post by cobblers
18 Dec 2023, 12:32
No power from Alternator to Leisure batteries.

Last post by slowcoach « 16 Dec 2023, 09:27
Replies: 13
by Porkscratching » 11 Dec 2023, 14:46

This is really effecting my ability to fire up the Erber. The alternator is giving a healthy output but it's not reaching the leisure batteries which...

13 Replies

11567 Views

Last post by slowcoach
16 Dec 2023, 09:27
Westy Split Charge/240V charger Question

Last post by clift_d « 14 Dec 2023, 19:56
Replies: 11
by si macc » 20 Apr 2018, 08:20

Hi all,

I've replaced my faulty BBB with Irish Dave's 3 stage charger mod and I know the wiring for this is working properly as I've tested with a...

11 Replies

9199 Views

Last post by clift_d
14 Dec 2023, 19:56
Ignition wiring

Last post by R0B « 13 Dec 2023, 18:19
Replies: 1
by kentishvanman » 13 Dec 2023, 17:55

Just received a new tracker unit which is going over the cab in the off side of the high top. Have 3 wires to connect. Live and Negative, they are...

1 Replies

2544 Views

Last post by R0B
13 Dec 2023, 18:19
Red light when headlights on

Last post by AngeloEvs « 07 Dec 2023, 22:16
Replies: 3
by Stevieboy217 » 06 Dec 2023, 19:24

Hello, I have an 1987 diesel T25 with an aaz lump in it.
I have recently started to have an issue where the red flashing coolant light comes on if...

3 Replies

9363 Views

Last post by AngeloEvs
07 Dec 2023, 22:16
Km to mph speedo conversion

Last post by Simon Baxter « 05 Dec 2023, 15:48
Replies: 15
by AngeloEvs » 01 Apr 2019, 17:01
1

2
I have a km per hour speedo with trip odometer, I have calibrated for mph and fitted a spare mph facial but the mileage increment's in km covered not...
15 Replies

15635 Views

Last post by Simon Baxter
05 Dec 2023, 15:48
Starter Batteries

Last post by ZsZ « 05 Dec 2023, 11:15
Replies: 4
by Michael4 » 04 Dec 2023, 16:58

Is Alpha Batteries still the go to business for starter batteries that fit under the drivers seat (1.9DG...175mm high?) or is there a new flavour of...

4 Replies

5630 Views

Last post by ZsZ
05 Dec 2023, 11:15
Interior electrics

Last post by keynsham1 « 29 Nov 2023, 22:21
Replies: 3
by Welshclimber » 18 Nov 2023, 19:02

Hi all,

Just looking for some help with the interior electrics. Ours has been messed about with over the years so nothing like the original so I’m...

3 Replies

8382 Views

Last post by keynsham1
29 Nov 2023, 22:21
Local Guru Needed

Last post by Mocki « 19 Nov 2023, 16:11
Replies: 1
by Rubbersoul71 » 19 Nov 2023, 14:07

I'm new to T25s and my first bus, an 89 1.6td has clearly had the cowboys in.

Can anyone local to Sheffield spare a few hours on a Saturday or...

1 Replies

7350 Views

Last post by Mocki
19 Nov 2023, 16:11
Brake reservoir missing something

Last post by R0B « 19 Nov 2023, 15:33
Replies: 2
by Rubbersoul71 » 19 Nov 2023, 13:51

Can anyone please advise what missing from the top of the brake fluid reservoir?

It's clearly lacking something and brake fluid has definitely been...

2 Replies

7066 Views

Last post by R0B
19 Nov 2023, 15:33
T25 1.9 dg no dash power

Last post by mike2drummond « 17 Nov 2023, 09:33
Replies: 4
by mike2drummond » 14 Nov 2023, 14:54

I have an electrical problem where there is no power to the instrument cluster on my 1.9 dg t25.

There is no power coming in on pin 8 of the 14 pin...

4 Replies

7407 Views

Last post by mike2drummond
17 Nov 2023, 09:33
Coil renewal

Last post by R0B « 12 Nov 2023, 22:37
Replies: 1
by kentishvanman » 12 Nov 2023, 22:04

Does the performance of a coil reduce over the years?
Mine is the original one 1987 and I wondered if it should be retired?

1 Replies

6845 Views

Last post by R0B
12 Nov 2023, 22:37
Flashing LED batten lights

Last post by KOTSY « 11 Nov 2023, 16:43
Replies: 2
by KOTSY » 08 Nov 2023, 07:38

Hi everyone. Fitted new batten led lights in my pit about 18 months ago.now when they have been on about 15 mins. They start to flash on and off.it...

2 Replies

7201 Views

Last post by KOTSY
11 Nov 2023, 16:43

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