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© 1-11 ECS-DC3 fault codes ECS-DC3 DAVIE XD diagnostics manual 17 654 - 7 Incorrect mechanical response from cylinder 4 faulty injector - internal fuel leakage - leakage in fuel supply system (high Longer start time before engine fires. 654 - 11 Short circuit in injector(s) of cylinder row #2, short circuit to earth or short circuit in the - engine having been switched off at an Longer start time before engine fires. 654 - 13 Pre-injection overlaps the beginning of main defective ECU (D903) Loud combustion knocking. 655 - 5 Measured current strength from cylinder 5 interruption in injector wiring - bad connection point at injector Irregular engine running and reduced engine 655-7 Incorrect mechanical response from cylinder 5 faulty injector - internal fuel leakage - leakage in fuel supply system (high Longer start time before engine fires. 656 - 5 Measured current strength from cylinder 6 interruption in injector wiring - bad connection point at injector Irregular engine running and reduced engine 656-7 Incorrect mechanical response from cylinder 6 faulty injector - internal fuel leakage - leakage in fuel supply system (high Longer start time before engine fires. 723 - 2 No signal from camshaft sensor due to: faulty/soiled camshaft sensor (F558) - too large an air gap between camshaft - short circuit, short circuit to supply, short Longer start time before engine fires. 723 - 7 Crankshaft sensor and camshaft sensor signals incorrect timing - short circuit or interruption in wiring - faulty/soiled crankshaft/camshaft sensor - Engine starts but will not fire. - Longer start time before engine fires. - Irregular engine running and reduced Fault code Fault code description with possible cause Symptom |