Start of injection – control difference
Injector needle lift sensor – open circuit/short to positive
Injector needle lift sensor – range/performance problem
Injector needle lift sensor – short to ground
Injector 8 – open circuit
Injector 7 – open circuit
Injector 6 – open circuit
Injector 5 – open circuit
Injector 4 – open circuit
Injector 3 – open circuit