Click here to return to the home page.
Image of a road.
Who's Online Now
12 members (DavidR, MDS61, Alastair, DJC, Montegue, Zach, Dada, Hamwich, Chris99, Rev 4K, MATTMOG, Malcolm T), 398 guests, and 47 robots.
Key: Admin, Global Mod, Mod
Top Posters(30 Days)
John V6 74
+8Rich 68
DaveW 67
Luddite 54
Newest Members
Ulfulf, Wilfried, Classic-Line, BrunswickGreen44, Franco Morgan
9,203 Registered Users
Newest Topics
M3W - Anyone know this car?
by Biggle - 22/07/25 01:40 PM
S&S X Wedge Engine Gasket Source
by Morgan Dude - 22/07/25 02:13 AM
Supermax sprocket
by Laurens - 21/07/25 08:26 AM
Morgan 3 Wheeler song
by Dutch - 21/07/25 12:31 AM
Technical drawings, dimensions, 3D model M3W
by Oskar - 20/07/25 04:13 PM
Goggle eyed
by Roady - 19/07/25 06:16 PM
FOR SALE AERO8 series 1 WHEELS
by t50 - 19/07/25 12:07 PM
Latest Photos
Motorworld München
Motorworld München
by Oskar, July 20
visit to Classic Remise Düsseldorf
my book
my book
by Oskar, July 20
More Pictures of the MHR Visit
More Pictures of the MHR Visit
by DaveK, July 19
Visit to the Factory- Historic Morgan Group
Forum Statistics
Forums34
Topics48,339
Posts812,964
Members9,203
Most Online1,046
Aug 24th, 2023
Today's Birthdays
PPP356
Previous Thread
Next Thread
Print Thread
Joined: Jul 2011
Posts: 469
E
exbiker Offline OP
Learner Plates Off!
OP Offline
Learner Plates Off!
E
Joined: Jul 2011
Posts: 469
Anyone having running problems with series 2 roadster - sometimes when stationary revs stay at 2000, stays there for quite a while, sometimes requiring the engine to be re started before it rectifies itself, sometimes after a few minutes it clears itself, this is not like the revs hang whilst driving, although it does that as well and I have been told that is a charicteristic of this engine, any info appreciated, Cheers


2017 Mercedes Benz SLC 200 AMG.
2019 Mercedes Benz GLA 200 AMG
Now Ex-Mogger!
Joined: Jul 2007
Posts: 26,747
Likes: 419
Member of the Inner Circle
Offline
Member of the Inner Circle
Joined: Jul 2007
Posts: 26,747
Likes: 419
My 97 +4 did that and it turned out to be a duff ECU.
It could be I guess an air leak after the throttle body.


JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
Joined: Jul 2011
Posts: 469
E
exbiker Offline OP
Learner Plates Off!
OP Offline
Learner Plates Off!
E
Joined: Jul 2011
Posts: 469
Cheers for that, am looking into trying another ecu from local dealer, never does it for the dealer though!!


2017 Mercedes Benz SLC 200 AMG.
2019 Mercedes Benz GLA 200 AMG
Now Ex-Mogger!
Joined: Jul 2007
Posts: 26,747
Likes: 419
Member of the Inner Circle
Offline
Member of the Inner Circle
Joined: Jul 2007
Posts: 26,747
Likes: 419
Ditto. It took 3 visits & 2 years to fix mine


JohnV6
2022 CX Plus Four
2025 MG ZS EV aka Trigger
Joined: Mar 2009
Posts: 11,220
Likes: 159
Smile, it confuses them
Member of the Inner Circle
Offline
Smile, it confuses them
Member of the Inner Circle
Joined: Mar 2009
Posts: 11,220
Likes: 159
next time it does it - whip out your trusty iPhone and video it occuring. I find it makes you look a lot less barking trying to explain it when you can show the video.

Better still if you happen to be driving then get the better half to use theirs so you still drive......

Last edited by Alistair; 11/07/11 05:37 AM.

Everyone loves a Morgan. Even me, unless it's broken again.
Joined: Aug 2008
Posts: 421
J
JJW Offline
Learner Plates Off!
Offline
Learner Plates Off!
J
Joined: Aug 2008
Posts: 421
Hi exbiker,
Has the dealer looked at the Idle Air Control Valve? If it is not the ECU, it might be a sticky IACV? Should be easy to check. You find it on top of the inlet at the throttle body. It looks like this (upside down)
The ECU controls idle by controling this valve allowing air from the upstream port to the downstream port in a channel that by-passes the main trottle valve. Good luck with it. Cheers J (also exbiker) thumbs

Joined: Jul 2011
Posts: 469
E
exbiker Offline OP
Learner Plates Off!
OP Offline
Learner Plates Off!
E
Joined: Jul 2011
Posts: 469
Thanks for all the information everyone!!

Got plenty to do now, amazing how you get new ideas from other people, never even thought about videoing the event!!

Will be in the dealers during the next couple of weeks so will let you know the outcome, Thanks


2017 Mercedes Benz SLC 200 AMG.
2019 Mercedes Benz GLA 200 AMG
Now Ex-Mogger!
Joined: Jul 2011
Posts: 469
E
exbiker Offline OP
Learner Plates Off!
OP Offline
Learner Plates Off!
E
Joined: Jul 2011
Posts: 469
It's taken a while but I think I have sorted out the problem.
The air inlet pipe to the air cleaner has a rubber end, (both ends, but it was the open end causing the problem) the rubber had folded into the inlet pipe thus restricting the airflow, so far none of the high revs at idle (the revs still hang under accelaration but have been told by loads of people this is normal for the engine in this model)


2017 Mercedes Benz SLC 200 AMG.
2019 Mercedes Benz GLA 200 AMG
Now Ex-Mogger!
Joined: Aug 2008
Posts: 421
J
JJW Offline
Learner Plates Off!
Offline
Learner Plates Off!
J
Joined: Aug 2008
Posts: 421
Do you mean the ribbed hose that takes the air from the area above the radiator to the airbox intake? I have seen this hose folded inward a bit at the radiator on several roadsters. One of my future projects will be to replace it with something smoother and possibly to a cooler area. But if it is this hose you talk about I am amazed that it caused a high iddle. thinking At iddle there is soo litle air required, a slight restriction in the intake should not make a difference.
I know what you mean with the rev-hang at high rpm, anoying, but as you say many engines of many brands do this. evil Its caused by the pollution control gizmo's (EGR/IACV).
Cheers J


Moderated by  TalkMorgan 

Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5