Be sure the throttle valve switch is closed when it is at idle. This car does have an idle switch down there that tells it to idle.

An ohm reading of the wire is a static test. I like to check them dynamicly (sp?) or when in use.

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Benzmac:
Donnie Drummonds
1992 500E (very soon I hope
1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM