My friend's Citroen car version 1KFRE (2007) cranks but does not start. I checked Spark as you advised (I saw spark, so it is OK), Crank sensor (2050 Ohm, so OK), battery full (12.78 V, so it is OK). However, once the car is cranked, I can see the spark plug being wet with unleaded (gasoline) so I think that the fuel pump is fine. I am going to check again if I can hear some "wishing" sound from the pump when the fuel tank lid is open today. All fuses were checked one by one and all are OK.
Could you advise is there any possible things I could check more ?