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PointedThree :  Sedan Forums : W126 S,SE,SEC,SEL,SD,SDL Class : 560 running rough

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560 running rough
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Posted 2/18/2007 11:25 AM
G wizz
Elite Veteran




Date registered: Apr 2006
Location: Uk
Vehicle(s): Dont own a G anymore, Too expensive!!!!
Posts: 686
500
560 running rough

Hi gentlemen. I have a G wagen with a 560 from a 126 installed and its running rough. I am cnvinced it is dumping fuel in from the cold start injector, as it only does it when its warm, it feels like its flooding it. Is there a cold start sensor which activates/deactivates the cold start injector. I am getting black smoke which is un burnt fuel. it clears if i floor the pedal but pottering around and cruising at 60 feels bad.

anyone got any ideas and what parts I should change.
regards

Ian
#64244
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Posted 2/20/2007 1:05 PM
G wizz
Elite Veteran




Date registered: Apr 2006
Location: Uk
Vehicle(s): Dont own a G anymore, Too expensive!!!!
Posts: 686
500
RE: 560 running rough

thankss for the help
#64475 - in reply to #64244
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Posted 3/23/2007 8:02 AM
mercedesman91

Date registered: Dec 1899
Location:
Vehicle(s):
RE: 560 running rough

I have heard replacing the oxygen sensor has helped others with their rough running problems, and just a tip if you run alot of un burnt fuel out the exhaust you can very easily destroy your catyletic coverter. hope this helps! they o2 snesors from discountmbparts.com has them cheap.

Regards- Erik
#67806 - in reply to #64244
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