recently had an complete engine change and after a couple of days suffered loss of power and engine management light,

When investigating for some days then finding a post to manually read faults i discovered P0203 , 0303 errors , all relating to the cylinders.

Then whilst looking over the car when it was running i pressed on the wiring loom and hay presto the power came back

Looking closer at the wiring loom i noticed it only has 1 clip on it

for the moment i pushed it back in and been on my way, , it did pop put again today so i figured i best get the clips, does anyone know what the actual name for these are , and are they easy to fit?

FYI, i went back to the fitter and he told me... it must never have had them on in the first place