Hi there i was wondering if theres any technical people out there who know there stuff about electrical problems,my 320 eclass was running but not idling and then i had a little fire on the air mass loom, i have replaced the air mass and wiring looom to the affected area only but have no spark anymore to plugs,Question being have i ruined the ecu?and can it be tested /checkedsome how before replacing? i would appreciate any professional adviceregarding this sportline as i love the wagon