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Sold
by simon8201 - 09/09/26 01:46 PM
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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: May 2014
Posts: 2,780 Likes: 5
Talk Morgan Expert
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Talk Morgan Expert
Joined: May 2014
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A good TMer gave me an early nod that an ECU update was going to be available for GDI Plus 4's.
So I have had mine done and can say that the 'issue' of high revs on cold start is still an issue but the general running is improved. It has leaned the lower rev ranges so the car isn't so sooty and I now have a nice burble from the exhaust on overrun.. No banging and popping but just a burble. It feels cleaner and crisper at 'normal' revs and I don't have the muck dribbling out the tailpipe.. Probably the MPG will be better too, So overall it's worth it.
Steve
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Joined: Sep 2013
Posts: 1,118
Has a lot to Say!
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Has a lot to Say!
Joined: Sep 2013
Posts: 1,118 |
Steve is this a cost option knowing Morgan I think it would be!
RogT Old Git Racer ex 4/4 sand 2013
+4 GDI Royal Ivory 2015
Ford Fiesta ST2
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Joined: Jan 2011
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Charter Member
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Charter Member
Joined: Jan 2011
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Steve, How, where and how much?? Your symptoms sound exactly like mine right down to the sooty exhaust.
I'm not bothered about the banging exhaust but I would like better m.p.g. I'm sure that the GDI engine burns more fuel than my two previous Duratec's, I am very light footed and am only getting around 26mpg as opposed to close on 40mpg for the previous two.
Here for a good time not a long time!!
Reg
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Joined: Apr 2010
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Just Getting Started
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Just Getting Started
Joined: Apr 2010
Posts: 87 Likes: 1 |
Interesting, my December 2014 +4 GDI has never had high revs on cold start, sometimes does well over 40mpg even with "progressive" driving at times. Last year over the Pyrenees to the med it averaged 38mpg. Last Sunday did a run out with a Caterham lookalike through Wales, over the "hellfire pass" from Dinas to Bala, then back via Llangynog and curry in Shrewsbury. Tankful to tankfull 41mpg. Great driving route - even the bikers we driving reasonably slowly. Perfect weather.
Last edited by WOX9; 10/05/16 08:45 AM.
+4 Jaguar Lazuli Blue - MO6 4 MOG, Morgan Clubsport.
Laser Stratos (sadly sold)
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Joined: Jul 2014
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Talk Morgan Regular
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Talk Morgan Regular
Joined: Jul 2014
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Yes, interesting. My Sept 2014 GDI appears to have no issues with high revs on start and is also very economical. Same experience as WOX9. I'd be interested to know more about the ECU upgrade and what it's supposed to achieve.
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Joined: Dec 2008
Posts: 22,371 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,371 Likes: 354 |
Check the Techniques page in this month's Miscellany - I think I saw it there.
Yep - back page:
"With the factory diagnostic equipment we are able to offer the latest ECU flash for the +4GDI. This removes the high revs on first start, gives an improvement on MPG and can be carried out when you have your car serviced.
We are also able to carry out an ECU emissions reflash for the +4 SuperSports".
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Mar 2012
Posts: 407
Learner Plates Off!
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Learner Plates Off!
Joined: Mar 2012
Posts: 407 |
Very interesting Steve.
Mine has a short revs "spurt" on starting when cold and a pop now and again when running (which I quite like).
Acceleration however doesn't seem to be all it can be. Has the update improved that at all?
Also, was it done at the dealer?
Cheers
Stuart
Rich Maroon and Royal Ivory (ish) +4
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Joined: Dec 2008
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Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,371 Likes: 354 |
Doesn't a sooty exhaust mean the cat isn't getting hot enough?
The Duratec exhaust is absolutely clean.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Aug 2010
Posts: 209
OXR 5 L - Learner Plates On
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OXR 5 L - Learner Plates On
Joined: Aug 2010
Posts: 209 |
"Doesn't a sooty exhaust mean the cat isn't getting hot enough?"
Looks like you need a hot tin roof Dave
Tony
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Joined: Dec 2008
Posts: 22,371 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,371 Likes: 354 |
Or some hot bricks. 
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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