IPD sale XeMODeX - Experts in Volvo Electronics
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy your stuff using this and it helps MVS!

2.0T ECU on 2.3T

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

850T5Ritalia
Posts: 23
Joined: Fri Oct 11, 2019 2:19 am
Year and Model: 1995 T-5R
Location: Earth
Has thanked: 1 time
Been thanked: 1 time
Italy
850T5Ritalia

2.0T ECU on 2.3T

Post by 850T5Ritalia » Fri Nov 22, 2019 5:49 am

Hi all,

I bought this Italian spec 850 T-5R and was told by the owner that, because it is an Italian market car it has a 2.0T(b5204t) obviously.. BUT when I went through the service book I noticed somewhere it said that the engine was replaced. So I went to check the code on the engine and it says: B5234T4. According to Wikipedia this is the 850R engine? The engine swap was done in the Netherlands were the 850R is a ‘96 or ‘97 car like almost everywhere else I assume. This engine is supposed to run 250hp according to the specs on Wikipedia. Where it doesn’t feel that quick to me and only builds 7psi of boost I checked the ECU and it seems that it still has the 2.0t ECU installed.. code 0 261 200 548.

I suspect this to be the reason it doesn’t make good power? (Does the 2.0T make such low boost?) I also think they didn’t swap over the turbo that belongs to the B5234T4 but rather placed the B5204T turbo back since it has the 13G fitted

Also I can’t really find reliable information on which ECU this B5234T4 engine is suppose to run. Is it the 4.3 or 4.4 that runs the B5234T4? I’ve read stories that no 850R has the 4.4 originally but also that some might use it..

I of course want to use the full potential of the B5234T4. Installing a 16t and the correct ECU would do that I think. Just like to know which ECU to look for.

Thanks!🙏🏼



User avatar
bmdubya1198
Posts: 3388
Joined: Tue Dec 30, 2014 10:45 am
Year and Model: '98 V70 GLT
Location: Charlotte, NC
Has thanked: 31 times
Been thanked: 108 times
United States of America
bmdubya1198

Re: 2.0T ECU on 2.3T

Post by bmdubya1198 » Fri Nov 22, 2019 7:29 am

That sounds like exactly what you need to do... find a 2.3 HPT ECU (Motronic 4.4 is what you'd probably want) and install a 16t. If the 2.0 originally had a 13g, it likely only ran at around 7 PSI of boost.


2000 V70R Venetian Red/Charcoal M56 Swapped 191k
2000 S70 GLT Mystic Silver/Taupe 2??k
2003 S60 2.4T Silver/Black 108k
2007 XC90 V8 AWD Sport Titanium Grey/Black 160k
1993 944 Base Beige/Beige 221k
1992 Miata Mariner Blue/Black 146k
Sold-
1998 V70 GLT Black/Beige 193k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k- Never should have sold it


Need used parts? PM me!

850T5Ritalia
Posts: 23
Joined: Fri Oct 11, 2019 2:19 am
Year and Model: 1995 T-5R
Location: Earth
Has thanked: 1 time
Been thanked: 1 time
Italy
850T5Ritalia

Re: 2.0T ECU on 2.3T

Post by 850T5Ritalia » Fri Nov 22, 2019 7:40 am

bmdubya1198 wrote:
Fri Nov 22, 2019 7:29 am
That sounds like exactly what you need to do... find a 2.3 HPT ECU (Motronic 4.4 is what you'd probably want) and install a 16t. If the 2.0 originally had a 13g, it likely only ran at around 7 PSI of boost.
Thanks for answering. When installing a 4.4 on my ‘95 car I need to do some modifications to use the A/C right?



User avatar
RickHaleParker
Posts: 3214
Joined: Mon May 25, 2015 2:30 pm
Year and Model: See Signature below.
Location: Kansas
Has thanked: 3 times
Been thanked: 376 times
United States of America
RickHaleParker

Re: 2.0T ECU on 2.3T

Post by RickHaleParker » Fri Nov 22, 2019 9:51 am

These are all M4.4 ECMs and all these cars have the B5234T4.

0 261 203 927 – 96 850 T5 Automatic 2.3T - TD04HL-15g turbo.

0 261 204 611 – 98 SV70R 2.3T - TD04HL-18T turbo.
0 261 204 612 – 98 SV70R 2.3T - TD04HL-18T turbo.

0 261 204 455 – 98 V70R Automatic 2.3T - TD04HL-18T turbo.

0 261 204 606 – 98 V70R AWD Automatic 2.3T TD04HL-18T turbo.

You can find the 606 binary file (BIN) at M44 Wiki or one of the binary mirrors.

All the M4.4 hardware is the same the difference is the software. You could flash the BIN you need to any M4.4 hardware.


Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0,
Plant Torslanda Sweden.
----------------------------------------------------------------
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

850T5Ritalia
Posts: 23
Joined: Fri Oct 11, 2019 2:19 am
Year and Model: 1995 T-5R
Location: Earth
Has thanked: 1 time
Been thanked: 1 time
Italy
850T5Ritalia

Re: 2.0T ECU on 2.3T

Post by 850T5Ritalia » Fri Nov 22, 2019 10:55 am

Very helpfull information! Thanks!

I found an 4.4.1 from a 960 2.5i for a good price. The code is: 0 261 203 657

I can flash the BIN on this ECU and do the 4.4 conversion to not frick my AC and be good? (Does it matter if this ECU came from a AUTOMATIC??)
My '95 car doesnt have a OBD2 port. Can I still use the led light diagnose system in the engine bay? And how does the lag of the OBD port trouble me when I want to data log etc?

Thanks



User avatar
misha
Posts: 4018
Joined: Sun Dec 07, 2008 4:09 pm
Year and Model: '97 850 2.5 20v
Location: Serbia
Has thanked: 36 times
Been thanked: 96 times
Serbia
misha

Re: 2.0T ECU on 2.3T

Post by misha » Fri Nov 22, 2019 2:54 pm

No you CAN'T!
960 & S90 2.5i have 6 cyl engine!


'97 850 2.5 20v /fully equipped/ Motronic 4.4 / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

850T5Ritalia
Posts: 23
Joined: Fri Oct 11, 2019 2:19 am
Year and Model: 1995 T-5R
Location: Earth
Has thanked: 1 time
Been thanked: 1 time
Italy
850T5Ritalia

Re: 2.0T ECU on 2.3T

Post by 850T5Ritalia » Fri Nov 22, 2019 5:22 pm

misha wrote:
Fri Nov 22, 2019 2:54 pm
No you CAN'T!
960 & S90 2.5i have 6 cyl engine!
Thanks!



User avatar
bmdubya1198
Posts: 3388
Joined: Tue Dec 30, 2014 10:45 am
Year and Model: '98 V70 GLT
Location: Charlotte, NC
Has thanked: 31 times
Been thanked: 108 times
United States of America
bmdubya1198

Re: 2.0T ECU on 2.3T

Post by bmdubya1198 » Sat Nov 23, 2019 8:27 am

Yes, 960 ECUs are different. You need an 850 or S/V/C70 ECU.


2000 V70R Venetian Red/Charcoal M56 Swapped 191k
2000 S70 GLT Mystic Silver/Taupe 2??k
2003 S60 2.4T Silver/Black 108k
2007 XC90 V8 AWD Sport Titanium Grey/Black 160k
1993 944 Base Beige/Beige 221k
1992 Miata Mariner Blue/Black 146k
Sold-
1998 V70 GLT Black/Beige 193k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k- Never should have sold it


Need used parts? PM me!

User avatar
bmdubya1198
Posts: 3388
Joined: Tue Dec 30, 2014 10:45 am
Year and Model: '98 V70 GLT
Location: Charlotte, NC
Has thanked: 31 times
Been thanked: 108 times
United States of America
bmdubya1198

Re: 2.0T ECU on 2.3T

Post by bmdubya1198 » Sat Nov 23, 2019 8:29 am

850T5Ritalia wrote:
Fri Nov 22, 2019 7:40 am
Thanks for answering. When installing a 4.4 on my ‘95 car I need to do some modifications to use the A/C right?
I believe so, but I want to say there are software patches. Search for M4.4 conversion on Volvospeed, lots of info on that over there.


2000 V70R Venetian Red/Charcoal M56 Swapped 191k
2000 S70 GLT Mystic Silver/Taupe 2??k
2003 S60 2.4T Silver/Black 108k
2007 XC90 V8 AWD Sport Titanium Grey/Black 160k
1993 944 Base Beige/Beige 221k
1992 Miata Mariner Blue/Black 146k
Sold-
1998 V70 GLT Black/Beige 193k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k- Never should have sold it


Need used parts? PM me!

User avatar
erikv11
Posts: 9370
Joined: Sat Jul 25, 2009 2:03 pm
Year and Model: 850, S/V70, 06 S60R
Location: Iowa
Has thanked: 72 times
Been thanked: 228 times
United States of America
erikv11

Re: 2.0T ECU on 2.3T

Post by erikv11 » Sat Nov 23, 2019 9:15 am

Redirect to superseding thread by OP viewtopic.php?f=1&t=91972


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

Post Reply
  • Similar Topics
    Replies
    Views
    Last post