1994 Mercedes s420 runs rough Need help - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 07-08-2011, 09:13 PM Thread Starter
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1994 Mercedes s420 runs rough Need help

I have a 1994 s420, it runs rough with no lights on in the instrument cluster. No codes are in the cars current or history as of last scan. I have replaced the engine wiring harness, replaced the wiring on the throttle body, all of the wires were bare. I just put on new cap and rotors with no luck. It runs at idle but has no acceleration. The asr light is not on. It runs smooth for a few seconds then feels like it starts to load up. Im out of ideas and dont know what else to do. So if you have any ideas let me know
thank you
thekookoothe is offline  
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