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Wales
by Joske Vermeule, September 1
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Forums39
Topics49,880
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Most Online1,063
Jun 14th, 2026
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There are no members with birthdays on this day. |
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Joined: Aug 2019
Posts: 296 Likes: 3
Learner Plates Off!
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OP
Learner Plates Off!
Joined: Aug 2019
Posts: 296 Likes: 3 |
I was supposed to be picking up my new M3W today but apparently it won’t start, and they can’t diagnose it as it has a new ECU with a type-C USB connector and they need new software (and cable) to diagnose it. Has anyone else heard anything about a new ECU? It was working and went through the PDI, but then died.
Car is a February 2020 build that has spent a couple of months in transit, and is now waiting broken for me at Morgan West in Santa Monica. Their mechanic Stefan knows what he is doing, so I don’t think this is anything obvious. They tell me the fuel system seems fine.
So disappointed and frustrated. But I am sure it is worth waiting for, and I am looking forward to posting photos.
2020 M3W
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Joined: Nov 2015
Posts: 8,688 Likes: 495
Just barreling along Needs to Get Out More!
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Just barreling along Needs to Get Out More!
Joined: Nov 2015
Posts: 8,688 Likes: 495 |
Perhaps it's caught a 'virus' in transit
Sorry couldn't resist the temptation - Hope you get it sorted, have you tested battery, They don't seem to like standing idle
Jon M
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Joined: Nov 2013
Posts: 1,947
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Nov 2013
Posts: 1,947 |
Does it have an immobiliser? If so the attached dongle needs to be touched to the key surround so the central warning light goes out. I thought later cars had an ODB socket not C-USB.
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Joined: Aug 2019
Posts: 296 Likes: 3
Learner Plates Off!
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OP
Learner Plates Off!
Joined: Aug 2019
Posts: 296 Likes: 3 |
No immobiliser. I read enough negative things here not to order that, and it doesn’t seem to help with US insurance. Removing the steering wheel is immobilising enough for me!
2020 M3W
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Joined: Aug 2019
Posts: 296 Likes: 3
Learner Plates Off!
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OP
Learner Plates Off!
Joined: Aug 2019
Posts: 296 Likes: 3 |
Turns out it was a loose wire on the crank position sensor. Back to picking it up today!
Will find out more about the ECU once I get it. Maybe they just changed the connector?
2020 M3W
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Joined: Aug 2019
Posts: 960 Likes: 21
Talk Morgan Regular
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Talk Morgan Regular
Joined: Aug 2019
Posts: 960 Likes: 21 |
Nice to hear it's running now! Post some pictures! And congratulations! Welcome to the "M3W Insanity" 
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Joined: Jan 2014
Posts: 104
L - Learner Plates On
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L - Learner Plates On
Joined: Jan 2014
Posts: 104 |
Yes, new M3W's do indeed use a new ECU. It's in a similar box and has the same harness plug, but the architecture and firmware is different.
2012 G56 Stage 2 M3W
2007 Fiat Panda 100HP
1998 Lotus Elise (Cosworth Duratec)
1988 RF88 Van Diemen
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Joined: Feb 2018
Posts: 807 Likes: 38
Talk Morgan Regular
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Talk Morgan Regular
Joined: Feb 2018
Posts: 807 Likes: 38 |
Any idea if the new ECU is sourced from S&S? IF so, does the S&S Protune Software still communicate with it?
Steve
Late 2012 M3W
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