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Rough and shaky idle on a 2002 SL500 (R129)... NEED HELP Please
My car is experiencing a periodic hesitation when accelerating from low revs.
It also idles rough and has a very noticeable shake when in park and drive. It drives just fine, but when coming to a stop it starts to surge and when I come to a stop the rough/shaky idle starts up again. I've already: -installed 16 new spark plugs -installed 8 new ignition coils -replaced both motor mounts and trans mount -removed and cleaned the TB -checked all the hoses by the TB (all were connected and seemed fine) Any help/assistance is greatly appreciated. |
My car also has an aftermarket supercharger and an adjustable Kleemann MAF clamp that was set at 597 omes. Tonight I adjusted it to the Kleemann's suggested setting of 475 but have yet to drive it to see if that helps or not.
Should I reset all of the adaptive values so the ECU to adjust to the new MAF setting? Again any help is Greatly appreciated. |
Re-adaption of the crank sensor will normally help that type of issue.
MB scanners have that provision. You must drive at 2100rpm in 3rd gear for 30seconds with a 50% load. |
Thank you M.B.DOC.
I currently have a MEMOSCAN scanner, but it doesnt reset any of the ECU's adaptation. I can only reset error codes which I dont think will help me for this task. Can you suggest an affordable MB scanner that will enable me to reset the appropriate values? Will something like this do: |
If your canner has "live" data, drive the car watching the load at the above prescribed manner.
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My scanner has live data, so I will do as you advised.
I didnt know you could re-adapt the values without having to reset them via DAS. Please correct me if I'm wrong. |
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