Idle miss
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From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
Sure, it's pretty basic. Fine off idle miss is one thing, but miss off idle fine miss is totally different. Are you missing off idle fine or just occasionally idling and missing but just finely?
Just busting chops. Noone is replying as the question is confusing. Are you skipping at idle but any other time the car feels fine?
Just busting chops. Noone is replying as the question is confusing. Are you skipping at idle but any other time the car feels fine?
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
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From: Denver, CO
Formula Mazda, Beast Junior...400HP 135i
If it is just a light miss at idle that goes away under load, I would guess that a coil pack is starting to go bad OR an issue with a plug as a cracked insulator could easily cause that.
If the car has over 50 or 60K miles, it wouldn't hurt to throw plugs at it anyway.
If the car has over 50 or 60K miles, it wouldn't hurt to throw plugs at it anyway.
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From: Kuwait
CLS55 2006, CLS 63S 2015
hmm
what would u say to a car that runs fine, and when pushed performs, but when you come to a stop it shacks and starts to stutter as if it is running out of gas, with idle going up n down.
give it gas again and drives fine
thoughts?
what would u say to a car that runs fine, and when pushed performs, but when you come to a stop it shacks and starts to stutter as if it is running out of gas, with idle going up n down.
give it gas again and drives fine
thoughts?
Last edited by Zod; Apr 19, 2010 at 03:04 AM.
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
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MBWorld Fanatic!
Joined: Jan 2007
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From: Kuwait
CLS55 2006, CLS 63S 2015
MBWorld Fanatic!
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
a lot of people were having weird intermittant idle problems with the oversized tb's. i had it with my 78 but fixed it once i properly sealed the y-pipe inlet with the tb and it ran perfectly. there's still problems with the 82mm versions that i don't think anyone has fixed yet.
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From: California, USA
E63 P30, CL500 Sport
Sure, it's pretty basic. Fine off idle miss is one thing, but miss off idle fine miss is totally different. Are you missing off idle fine or just occasionally idling and missing but just finely?
Just busting chops. Noone is replying as the question is confusing. Are you skipping at idle but any other time the car feels fine?
Just busting chops. Noone is replying as the question is confusing. Are you skipping at idle but any other time the car feels fine?
To the OP: what rpm range is the car jumping between when it is on idle?
Thread Starter
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From: SOCAL
2004 E55
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From: NJ/Greece
2006 CLS55 & 2002 SL55 (R129) Silver Arrow
Anyone know what could be causing this?
MBWorld Fanatic!
Joined: Jan 2007
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From: Kuwait
CLS55 2006, CLS 63S 2015
a lot of people were having weird intermittant idle problems with the oversized tb's. i had it with my 78 but fixed it once i properly sealed the y-pipe inlet with the tb and it ran perfectly. there's still problems with the 82mm versions that i don't think anyone has fixed yet.
wondering if the guys with airboxes are having this issue...
Super Member
Joined: Apr 2003
Posts: 681
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w212 E63 / 996tt
Sure, it's pretty basic. Fine off idle miss is one thing, but miss off idle fine miss is totally different. Are you missing off idle fine or just occasionally idling and missing but just finely?
Just busting chops. Noone is replying as the question is confusing. Are you skipping at idle but any other time the car feels fine?
Just busting chops. Noone is replying as the question is confusing. Are you skipping at idle but any other time the car feels fine?
Thread Starter
MBWorld Fanatic!
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From: SOCAL
2004 E55
There has been some debate about this. People believe it is the Throttle position sensor with the blade being open at only 1% compared to a stock TB which is @ 3% at idle. So i presume the car is being starved of air at idle. There is also the unmetered air problem as well
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From: Dallas, TX
2007 E63, 2005 Dodge Ram Hemi
I had this at idle in my 63. Shook harder than my truck at idle and every once in a while would miss. I had leaking intake gaskets and my adaptations were right on the edge (started surging at 80mph roll ons). Dunno if it could be something like that.
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From: Toronto
V12TT
I have #5 sometimes and #1 sometimes misfire at around idle 500~2000k rpms. Replaced the plugs, and coil packs and wires. Also replaced the O2. Misfire is still there.
I am going to change the injectors, check thoroughly for vacuum leaks and report back.
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From: Toronto
V12TT
