Mercedes Benz A190 2001- Fault code P0304 missfire cylinder 4, new coil pack fittedArchived Message
Posted by alanarmstrong on June 27, 2005, 7:04 pm
Has anyone had trouble code p0304 misfire cyl 4,Vehicle has had new coil pack fitted with plugs but does not appear to be misfiring although it runs rough on idle like it has an air leak but hasnt,all live data seems ok with oxy sensor switching and injector duration about 3.8ms on idle,it has airmass as part of ecu do these give injector firing probs?all wiring looks ok. any help would be much appreciated as not familiar with these