I think I have a case of dirty fuel injectors, the engine was built over a year ago and came from an auto wrecker. I cleaned everything up when I assembled it and a noid light shows they are firing and I have 40 psi on the rail but no gas on plugs and engine will not start or fire. Should I pull them out and soak them or is there an effective way to clean them without having to run the engine while they are still installed. Thanks for your help I need to get this pig running!