I think your problem is in the secondary ignition circuit,ie: ignition wires and or spark plugs. To rule out injectors there is a way to test and clean them. You need an injector tester and the specs. All of the delorean vender's service centers could check and clean them, it is rare for an injector to be bad but it is possible. If your wires and plugs haven't been changed in recent memory you should do that first, it's easier that digging into the fuel system. Also a can of injector cleaner could help. David Teitelbaum vin 10757