c3 cutting out

car still running on 3 cylinders wtf!!! help what can it be?????

my car runs pretty good until recently when i go over dip in the road at 30 to 40 mph engine light comes on engine stutters for a few seconds 2 short beeps then is ok again ,

Sounds like one problem is fixed and another has been put on as they are different.

If the car is running on 3, then you will need to diagnose which injector is not firing, check the injector and the associated wiring.

Considering the injector loom has been changed, it could well be that the loom has not been fitted correctly or whatever was being intermittent (at roundabouts) has become permanent with all the movement of wires in the process of fitting the new loom.

Getting some proper fault codes and diagnosis would help, use the Citroen diagnostic tool lexia tool to get these codes.

well i took it too citroen dealer for diao test they said neds new injector 318 pounds told them were to go basically !! had to pay 78 pounds for test reults so i have something to work with! getting injector replaced this week i hope have to wait and see ??

ok after test went back to garage that done bench test on injectors !! showed them test results !! they are sure injectors are good but that if i want they will replace injcetor with no labour costs but i will have to pay for part 175+vat new part! gulp well iam committed now i want this car road worthy again!!personally i still think its electrical but wouldnt know were to check other than whats already been done

OK GOT THE CODES P1169 PERMENANT FAULT INJECTOR 1 P1163, P0263, P0261 ALL THESES CODES ARE FROM CITROEN DEALER SHIP TEST THEY WERE GOING TO CHARGE ME 318 + LABOUR TO FIT NEW INJECTOR BUT I TOLD THEM INJECTORS HAVE BEEN TESTED AND ALL GOOD ! IT DRIVES BUT REALLY ROUGH OBVIOUSLY!! I HAVE ANOTHER POST ON HERE FAULTY INJECTOR NOBODY WANTS TO HELP! BECAUSE THEY DONT KNOW FOR SURE ?