Technical Ecu injector/coil codes - intermittent starter

[Budge1]

Hi
Recently purchased a Fiat 500 2010 1.2 petrol and having starting problems
Throwing injector and coil along with ABS/EBD failure
Codes P0201-11, P0202-11, P0203-11, P0204-11
P0351-14, PO352-14, P0353-14, P0354-14
Also C1221-86
Had a new battery and mainearth lead Also replaced a broken serpentine belt
Intermittent as managed to clear all codes and fired up and ran perfectly no codes
Then following won't start and throwing same codes
Not sure where to go with this, any ideas welcome
Cheers
Martin

 

[GettinBetter]

Judging by all those codes, I 'd start at the rear boot loom where it goes through the rubber hose into the tailgate. Reknown for causing all sorts of errors when the wires disintegrate and short out.

There's lots of posts on here about it.