Car came in with reported fault of loss of power, mil on tested system found fault code P0202, P0203, P0204 Injector circuit malfunction cylinders 2,3 & 4, cleared codes & with engine running P0202 returned. Carried out a few tests & found No2 coil pack faulty, replaced coil pack with genuine unit & spark plugs was fine for about 15mins then misfireing again with mil on, P0202 has returned. Has anybody had any problems like this as the information givev to me is that if a misfire develops the injector circuit for that cyinder will shut down is this correct or have I been mislead.

Thank you

Martin