Anyone, please shed some light on this problem. Red Engine light remains ON. Fat boy FLST 2001 model. 1450cc Fuel injected. Mileage 8 400km. Ign ON = Engine light ON for 4 sec. OFF for 4 sec. ON for 8 sec. Manual reflects this as Historical fault. Bike now has 20 000km on Speedo and done more than 50 starts. Problem. Engine light ON when running. Test I have done. • Linked pin 1 and 2 on diag plug. • Ign ON • Engine light flashes 6 times, 2 times 3 times,  flashes 3 times 2 times  6 times, then 1 time ? and back to 2,3 and 3,2 then 6 etc (P0261,P0262,p0263, p0264) • Traced fault to FRONT injector, and Back injector. Bike done 8 400km tells me unlikely to have 2 injectors faulty. Harley Durban confirm this fault and want me to import 2 new injectors? • I carried out further tests. • Removed tank and injector plugs. • Measured resistance with 2 separate Fluke meters. Each injector measures 14,5 ohm. Spec is 13,7 to 15,2 ohm. • Observed wiring diagram and measured resistance between ECM (pins 21,19) and injectors. 0,3 ohm ea • Observed wiring diagram and measured resistance between ECM and ground. 0,3 ohm. (pins 10,28) • Measured battery voltage. 12,9 volts. standing. • Measured voltage at injectors plug for 2 seconds when ign On. Fuel pump fuse pulled = 12,6 volt on both injectors. 0,3 volt drop tells me all connections are clean and in good condition. Inspected all joints. Master relay clean and not showing volt drop across its contacts. Have done 50 starts by now, so expect historical fault to be cleared by now. My thoughts are now, as to whether the software in the ECM is compatible with the resistance of the injector coil. The ECM must measure the current drawn by the injectors, in a window, and if the resistance in the injector circuit changes due to coil failure or even a loose or dirty connection. A fault will be reported. My logic tells me the injectors are fine. Installing new ones I do not believe will sort out the problem. Can you advise?