Kingair

Thanks for the tip re. OEM part numbers Dave. cheers Nigel

Thanks Greydog. Afraid the real cause, as I have just discovered, is due to damaged wiring...as you suggested, but probably not the type of damage. I found evidence of a rodents nest!! The insulation has been partially stripped (eaten). Hoping it is limited to what I can see. Rgds Nigel.

Just wondering if anyone has had/is having similar issues. The engine misfires in a very specific situation, namely after coasting (engine breaking) when applying throttle again, particularly at the lower end of the rev range, the engine misfires. Once at higher RPM 2000+ it behaves normally. My suspicion is a faulty injector, as opposed to a faulty coil pack. A faulty coil pack I believe would cause a misfire throughout the rev range. Any ideas how to verify the cause? Would new injectors need to be calibrated? or are they just interchangeable?