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Old 04-28-1999, 07:14 PM
MB STARS
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ON 1993 124.032 WITH 104.992 ENGINE IDLE SPEED UNEVEN IN PARK GEAR(JUMPS UP & DOWN FROM 500 RPM TO 1100 RPM).
THE IDLE SPEED ACTUATOR HAS BEEN REPLACE.( 000-141-57-25 )AND IDLE SPEED STILL SHOW UNEVEN (GOT A LOT BATTER THEN BEFOR WITHOUT A/C,(WITH A/C ON UNEVEN IDLE SHOWS AGAIN)ALSO ENGINE HAS MISS FIRE AT TIME.
I CHECKED DTC READ OUT FROM (X11/4) WITHOUT
IMPULSE COUNTER.(MY COUNTER WAS SHORT OUT BY
ACCIDENT) SHOW CODE #10,17,21.
AND I ALSO TESTED ALL 3 CODE CAN'T FIND ANYTHING
WRON WITH IT.(MYBE I MISS SOMETHING??)
VEHICLE HAS 84,000 MILE
NEED HELP ! PLEASE.


  #2  
Old 04-28-1999, 10:09 PM
Benzmac
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Have you checked the HFM Air Mass Meter? When they act up the same symptoms occur.

------------------
Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM


  #3  
Old 04-29-1999, 04:59 PM
MB STARS
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THANK YOU FOR HELPING OUT, THE PROBLEM I FOUND OUT IS ENGINE WIRE HARNESS AT IGNITION COILS CONNECTOR.(CAUSE BY ENGINE HEAT DAMAGE)THE WIRES INSOLATION CRACKED OUT & SHORT OUT
SIGNAL TO IGNITION COILS.
TO CORRECT PROBLEM IS REPLACE ENGINE HARNESS,PARTS COST
$ 513.00 PART # 124-440-56-32
PLUGS LABOR (EASY JOB/UNDER 1 HOUR)
  #4  
Old 04-29-1999, 09:15 PM
Benzmac
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DEAR MB STARS,
Check out the tip on wiring harnesses on Pro's Tech Tips!!

------------------
Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM


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