[MBZ] '88 126 Hesitation Problems and Intermittent Hard Start

[M.Afzaal Khan]

Seems most likely the throttle position sensor , Eventually I  tracked  one 
from a place called Mercedes .com
mak

>> Mark E. Peneguy wrote:
>
>> Friends:
>>
>> Recently, I started having a problem with hesitation when I accelerate
>> from a dead stop.  Once the car is in motion, everything is smooth, as
>> it should be.
>>
>> I don't have a clue as to what may be causing the problem.  I have had a
>> few things worked on lately, including a tune-up, with new spark plug
>> wires and distributor, cap and rotor, etc., which seems to rule out
>> those things as the issues.
>>
>> The only thing that I know made a difference in the idle, and I assumed
>> might be part of the hesitation problem, as the hesitation showed up not
>> too long afterwards, was a part (wish I could identify it for you) that
>> reduced the idle from 1,000 to 1,100 rpm at idle in park, to 550-600 rpm
>> at idle in park.  This part plugs in just under the air cleaner housing
>> in the front, top part of the engine, if that helps identify what it
>> might be.  The engine idles smoothly when in park, neutral or in gear
>> (runs about 450 rpm in gear at a stop and there is no "tremble").
>>
>> My second problem is an intermittent hard starting problem (the starter
>> was replaced not too long ago and the problem just manifested itself).
>> Sometimes, I turn the key and it starts right up, like it always used
>> to.  Now, though, if it doesn't start immediately, I turn the key and it
>> cranks for a few seconds before it finally starts.  The last time that
>> happened, I saw smoke come out from the rear of the car (couldn't tell
>> what color, due to the ambient light).  That was the first time I've
>> ever noticed smoke come from the tailpipe in the 13 years I've owned the
>> car.
>>
>> My trusted mechanic closed shop and is leaving the N.O. area since
>> Katrina.  So, I will be trying out a new mechanic to have this resolved
>> (wish I was mechanically inclined!).  I would like to have an idea of
>> what I may be looking at before I go to a new guy.
>>
>> Any thoughts any of you may have shall be greatly appreciated.
>>
>> Thanks in advance.
>>
>> Mark
>
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