[W126 Coupe] Fast Idle Issue 1983 380SEC

[kashella at comcast.net]

I have been having a fast idle issue for about 3 weels now.  I think the problem is the idle control module, but please let me know if there is also something else to check. 



The car will sometimes idle at the normal 750rpm.  But many times it idles about 1200 to sometimes 1500 rpm.  There is no pattern.  I can start the car and it idles at 1200, then it may settle down to 750.  Or it will idle at 1200 all the time.  Or it may start out at 750 then speed up to 1200.  There are a few times it went as high as 1500 and once around 1800. 



I do not think it is the idle control valve.  I cleaned the idle control valve.  If the care is idling at 750 and I disconnect the idle control valve the car will speed up.  If the car is idling fast  and I disconnect the idle control valve the car will not speed up.  If I apply a 9V battery to the idle control valve, the car will slow down stumble or stall.  For this reason I belive it is the module.  Evidently the module is not sendng any juice to the control valve. 



Also does anyone have experiene with BBA-Reman  at www.bba-reman.com in having MB electronics rebuilt? 



Thanks, 



Greg Kashella 

kashella at comcast.net 


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