car went into garage for new gear linkage cables, heater matrix and new water housing. After job complete car started and run for hour to test for water leaks. Car would not start thereafter. Car will start if you put it in 1st gear, turning the ignition key and letting the clutch out. It will also bump start. On the odd occasion it will start on the key. Flywheel changed, four new injectors, all wiring checked, new ECU. Computer printout says no faults registering. Peugoet dealers are saying 1 and 4 injectors are down on voltage. Do you have any views. This is a taxi and work is at a standstill.