Click here to return to the home page.
Image of a road.
Who's Online Now
6 members (Arwyn Williams, OZ 4/4, linklaw, MJF, James B W, Mauli), 296 guests, and 49 robots.
Key: Admin, Global Mod, Mod
Top Posters(30 Days)
+8Rich 64
Adam12 62
John V6 57
Newest Members
Chris Ontario, NickMog, YellowM, Dufty, Anted4
9,215 Registered Users
Newest Topics
For Sale 2015 M3W - £23,000
by MOG42 - 29/07/25 06:28 PM
AC Cobra Rep. Vs Plus 8
by Richardllll - 29/07/25 04:40 PM
Me Again
by Whizjet - 29/07/25 03:13 PM
Tyre dates on Yokohama tyres
by SteveMerch - 29/07/25 12:39 PM
Aero 8 Maintenance
by mph - 29/07/25 09:24 AM
Pur Sang Type 35
by BillHart - 28/07/25 06:49 PM
Tom Lehrer RIP
by Hamwich - 28/07/25 06:30 AM
Latest Photos
2015 M3W for sale
2015 M3W for sale
by MOG42, July 29
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
Forum Statistics
Forums34
Topics48,362
Posts813,311
Members9,215
Most Online1,046
Aug 24th, 2023
Today's Birthdays
There are no members with birthdays on this day.
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: 26,758
Likes: 424
Member of the Inner Circle
Offline
Member of the Inner Circle
Joined: Jul 2007
Posts: 26,758
Likes: 424
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: 26,758
Likes: 424
Member of the Inner Circle
Offline
Member of the Inner Circle
Joined: Jul 2007
Posts: 26,758
Likes: 424
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: 11,221
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: 11,221
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