Quote:
Originally Posted by mbzman
What are the symptoms of a failing EHA valve on a M103? I have a fuel smell coming from inside the engine compartment as well as hard starting, surging idle when cold and a slight unevenness at idle when hot. Is the valve hard to replace?
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the EHA has two o ring seals that can leak. the other item to check would be ICV and its pipes. A thorough cleaning of the ICV valve and the Air intake plate ,to the throttle plate at the bottom will give you a good base to check everything if this does not rectify the fault.