for questions and answers about alternative power transplants on the T25, GTi, Porsche,Subaru etc, this is the place. You must register to post but anyone can read.
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Petrol Alternative Engines...
Replies: 10
by
HarryMann »
15 Oct 2005, 01:57
Subaru Engine Types and Options
10 Replies
92228 Views
Last post by silverbullet
06 Apr 2024, 16:09
18 Replies
142308 Views
Last post by sdelasal
09 Aug 2008, 22:43
6 Replies
159 Views
Last post by slowcoach
Today, 19:07
AAZ diesel pump leak
Replies: 5
by
Al Housman »
13 Sep 2025, 14:58
The truck is finally going after being stood for about 2 years and sounds really good.
5 Replies
317 Views
Last post by Al Housman
13 Sep 2025, 20:28
Re-mapping AHU TDI
Replies: 12
by
hotpod »
02 Sep 2025, 13:25
Is this possible?
12 Replies
934 Views
Last post by hotpod
11 Sep 2025, 12:34
AFN TDI Obd scanner
Replies: 3
by
fh9977 »
04 Sep 2025, 12:31
Hi, would anyone be able to recommend an OBD device I can connect to the port of an ATF TDI engine to read live data? Is it possible to have a...
3 Replies
629 Views
Last post by Robsey
07 Sep 2025, 20:53
5 Replies
706 Views
Last post by Ukjamie82
04 Sep 2025, 13:00
2 Replies
1007 Views
Last post by ManicGTI
03 Sep 2025, 21:13
Help! Timing belt creeping off cog
Replies: 8
by
sopranolady »
26 May 2016, 09:36
Hi, apologies if this is the wrong category for the post, I'm looking for urgent advice, having hit a snag with our engine fitting project.
8 Replies
2983 Views
Last post by colinthefox
30 Aug 2025, 18:48
Throttle Potentiometer Issue
Replies: 6
by
Nistorph »
21 Jul 2025, 20:40
Hi,
6 Replies
607920 Views
Last post by TwinTurbo
16 Aug 2025, 12:36
Part Identification
Replies: 7
by
Bison535 »
13 Aug 2025, 10:13
Early Bay T2 with petrol engine 1.6 has difficulty in running and suspect a ‘sensor’ fault!?! Have removed this Sensor Unit but cannot identify which...
7 Replies
1006 Views
Last post by Oldiebut goodie
13 Aug 2025, 14:01
Glow plugs T3 tdi
Replies: 3
by
Kougar38s »
24 Jul 2025, 10:56
Hi all, I'm a new member and a new owner of a 1989 T3 tdi 1.6.
3 Replies
4137 Views
Last post by Simon Baxter
11 Aug 2025, 13:10
1.9DG to diesel swap.
by
DavidS »
10 Aug 2025, 21:37
I used to own a T25 with a 1.7KY engine which not obviously not quick, but it was very reliable and pretty economical. I had planned to put a 1Y in...
0 Replies
1034 Views
Last post by DavidS
10 Aug 2025, 21:37
Cosworth 2.9litre in my Crewwy
Replies: 302
by
dickspanner »
04 Jul 2006, 15:56
Hi folks
302 Replies
175709 Views
Last post by dickspanner
07 Aug 2025, 19:53
1.6d to 1y the definitive guide
Replies: 103
by
weldore »
15 Aug 2012, 16:05
theres been a few people over the years gone this route including myself and have had to ask questions or trawl through the alt forum for answers and...
103 Replies
591214 Views
Last post by JonathanUSSF
30 Jul 2025, 10:50
Power steering pump
Replies: 2
by
paradox »
26 Jul 2025, 16:09
I’ve a 1.9 TDi Passat engine in my van
2 Replies
328614 Views
Last post by Aidan
27 Jul 2025, 09:14
1.9d 1Y exhaust.
by
BarnyE »
26 Jul 2025, 18:37
Hey all, been reading up on this and I’ve got myself more confused than ever.
0 Replies
323083 Views
Last post by BarnyE
26 Jul 2025, 18:37
AAZ VS Air cooled
Replies: 6
by
davegeezzer008 »
27 Jun 2025, 19:58
Im having problems getting my AAZ pump rebuilt as bosch don't make many parts for the VE pump any more, so I'm just thinking ahead about my options...
6 Replies
126003 Views
Last post by dcworm57
16 Jul 2025, 05:12
Engine swop question
Replies: 1
by
aimlessrock »
11 Jul 2025, 19:43
Hi,
1 Replies
4057 Views
Last post by colinthefox
11 Jul 2025, 21:08
AAZ upgrade turbo and realistic power
Replies: 1
by
TommyJenko »
21 Jun 2025, 16:40
Hi guys I have a AAZ in bits that came with my van, I was going to rebuild it but looking at the turbo it’s a kkk-k03 which seems a bit small for the...
1 Replies
4552 Views
Last post by syncroandy
08 Jul 2025, 14:55
1.8T Sump Bolt Access
by
Vaughanylive »
06 Jul 2025, 07:43
I’ve got a 1.8T converted Syncro (AUM stamped block, but cable throttle) with a custom mild-steel sump made by whoever did the conversion. The paint...
0 Replies
5921 Views
Last post by Vaughanylive
06 Jul 2025, 07:43
AHU TDI Vibration Damper Pulley testing
Replies: 8
by
hotpod »
31 Mar 2025, 15:29
Does anyone know how to test if the vibration damper pulley ( harmonic balancer) on the crank shaft is in good shape?
8 Replies
7383 Views
Last post by hotpod
28 Jun 2025, 08:52
15 Replies
6710 Views
Last post by silverbullet
20 Jun 2025, 06:42
TDI annoying pause when pulling away
Replies: 9
by
hotpod »
06 Jun 2025, 09:22
1997 AHU ETDI
9 Replies
2663 Views
Last post by syncroandy
15 Jun 2025, 16:14
3 Replies
2132 Views
Last post by R0B
15 Jun 2025, 09:39
8 Replies
37622 Views
Last post by Lio
12 Jun 2025, 17:21
Oil Capacity (Diesel 1Y Engine)
Replies: 2
by
The Hairy Camper »
10 Jun 2025, 15:40
Just replaced a leaky sump gasket/baffle plate. Drained all the oil, replaced oil filter, and refilled with 4.5L of 15W40 oil. However, the dipstick...
2 Replies
1820 Views
Last post by The Hairy Camper
10 Jun 2025, 15:54
1z tdi ecu
Replies: 5
by
Wallace748 »
14 Oct 2015, 19:03
Hi, I'm running a 93/94 1z tdi with the 68 pin ecu. Struggling to get coms via diagnostic plug( it's the old two pin type) anyone help me out with...
5 Replies
5513 Views
Last post by bundyboy
10 Jun 2025, 08:34
4 digit pin code for AHU ECU Login?
Replies: 4
by
hotpod »
29 May 2025, 08:20
Does anyone know a way to find the 4 digit pin that VCDS requires to be able to do things like add new keys?
4 Replies
2629 Views
Last post by hotpod
30 May 2025, 07:47
1Y coolant pipes/system
Replies: 15
by
BarnyE »
30 Mar 2025, 14:20
Hi all, my van has had a 1Y engine swap in the past. Whoever swapped it seemed to have ran out of enthusiasm once the got to the coolant system and...
15 Replies
8370 Views
Last post by colinthefox
21 May 2025, 20:34
Subaru Engine Identification Needed
Replies: 5
by
Basilakios »
19 May 2025, 21:41
Hi!
5 Replies
2883 Views
Last post by Basilakios
20 May 2025, 16:25
1.8T Wiring/Fault Codes
Replies: 17
by
Vaughanylive »
29 Apr 2025, 18:44
I’ve got a T25 Syncro with a 1.8T conversion (AGU) which seems to be running ok but out of curiosity I plugged it into my VCDS Lite which is showing...
17 Replies
8981 Views
Last post by Splurt
17 May 2025, 10:54
AHU immobiliser stuck on. Help please
Replies: 6
by
hotpod »
03 May 2025, 09:41
1997 VW Golf AHU tdi in a T3 van. Installed in 2014
6 Replies
4851 Views
Last post by hotpod
14 May 2025, 09:27
5 Replies
3527 Views
Last post by Aidan
12 May 2025, 17:38
The SA 2.6i Microbus thread
Replies: 244
by
silverbullet »
23 Mar 2011, 12:07
I appreciate that this is pretty obscure but here goes...broke down in the 2.6 SA on Friday, had to be recovered :oops: thought I had fixed it with a...
244 Replies
238165 Views
Last post by silverbullet
09 May 2025, 19:58
Leaking Cooling Pipe Replacement
Replies: 4
by
Jdavis »
04 Mar 2025, 08:49
Hello all. New to the site and to T25 ownership.
4 Replies
43399 Views
Last post by Jdavis
03 May 2025, 05:39
Sump Plug
Replies: 7
by
Burtybassett »
26 Apr 2025, 10:47
Trying to change the oil and the blasted Sump Plug won't undo.
7 Replies
9913 Views
Last post by Aidan
27 Apr 2025, 14:32
aey engine
Replies: 10
by
warrior.1229 »
05 Feb 2015, 20:56
hi i am new to the t25 scene my wife has just bought me my first van but unfortunately the chap saw us coming it is a 1.6 cs diesel engine but i need...
10 Replies
10570 Views
Last post by Vwt25campee
26 Apr 2025, 09:29
Exhaust falling off
Replies: 4
by
therealchrisgray »
23 Apr 2025, 10:40
Hi all, I could use some opinions so I'm not completely at the mercy of a mechanic.
4 Replies
5738 Views
Last post by silverbullet
23 Apr 2025, 18:07
VCDS Fault code deciphering AHU TDI
by
hotpod »
23 Apr 2025, 09:35
I know why the vehicle speed signal is wrong and what I need to fix it but the ECU memory error is troubling and can anyone tell me what the...
0 Replies
9577 Views
Last post by hotpod
23 Apr 2025, 09:35
Engine Swap
Replies: 6
by
Tattersall »
14 Jan 2025, 03:13
Hi I really want to build a camper and I've seen a few t3s with broken engines. If I buy a 2.1 that has no engine in. What would be easies/best for a...
6 Replies
37907 Views
Last post by Dueller
18 Apr 2025, 11:41
Alternators.. inline 4 engines
Replies: 6
by
t25adict »
08 Apr 2025, 15:24
Would anyone know which engines VW Seat Audi used the alternator with the big spring under it.
6 Replies
6094 Views
Last post by Dueller
18 Apr 2025, 11:31
Diesel Engine Code Location
Replies: 6
by
The Hairy Camper »
06 Apr 2025, 18:54
I was struggling to find the engine code on my 1Y today.
6 Replies
6158 Views
Last post by T25boy71
11 Apr 2025, 09:26
7 Replies
52732 Views
Last post by therealchrisgray
17 Mar 2025, 11:03
little advice pls
Replies: 17
by
fh9977 »
04 Nov 2024, 12:05
Hi, just need some advice on what I do with my syncro...
17 Replies
61583 Views
Last post by JeffRoo
13 Mar 2025, 20:08
engine change from jx to 1z
Replies: 1
by
rossin84 »
10 Mar 2025, 08:15
good morning everyone, I am writing from Sicily (Italy), my multivan t3 bluestar 1.6 td jx has a blown engine, unfortunately it cannot be fixed and I...
1 Replies
31438 Views
Last post by Oren Kipnis
12 Mar 2025, 19:14
New engine
Replies: 10
by
therealchrisgray »
12 Feb 2025, 15:53
Hello all, I need some pretty basic advice and hoping one of you lovely people can help.
10 Replies
40337 Views
Last post by therealchrisgray
01 Mar 2025, 13:38
New van with cologne v6 engine
Replies: 47
by
Cableguy »
27 Jun 2010, 17:55
Hi, I'm a newbie to this forum and also to the t25.
47 Replies
131838 Views
Last post by Dueller
28 Feb 2025, 17:30
EJ20E Lambda Wiring.
Replies: 4
by
JackJosh »
20 Jan 2025, 14:33
Hi All,
4 Replies
35057 Views
Last post by JackJosh
07 Feb 2025, 21:34
Jx flywheel on 1Y block
Replies: 2
by
curtainsider »
28 Jan 2025, 16:26
Hello all’
2 Replies
32738 Views
Last post by curtainsider
28 Jan 2025, 17:55
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