It's a evoque 2012 and the cylinder 2 and 3 is not working, the spark plugs, injector nozzles and ignition coils have all been replaced, also the piston rings were checked and everything seems good with them all, I've checked the wire connectors and harness continuity test was carried out, they're all okay, yet the 2/3 cylinder does not combust regardless, please what could be the cause of this problem.