Originally Posted by nhdoc

My thought would be of testing it in-situ, mounted on the engine and using the starter to crank the pump around. It would not test the quantity of fuel through each injector but simply check basic functionality. I suppose you could do some measuring of fuel too by catching the fuel from each injector and comparing it but this way you would at least know if the IP was popping open the injectors. If it does that the IP should allow the engine to run.