Let's see if I understand you.
Doesn't the vehicle turn on you? I set you with failures?
If you do not turn on, check if there is a spark, if there is a plso of injection, if the pump sounds and if there are 40 to 50 psi in the rail of injunctors
if there are 5 volts in the TPS, the MAP, water and air temperature sensor
if you have a witness that blinks on the board, see if when you enter the key to the ratic it dries quiet It is going to turn on: it has immobilizer problems: the UCH was damaged with the wet or antenna transponder, or the key.
Depending on the diagnosis you find, the electrical cause of failure will be sought, it can be from a molten fuse, a broken cable, a pacha that sulfates with the wetthe problems with the habitacle or UCH shame unit, or damage to the ECU.
You must dry all pachas including computer.
Look at the computer of Citus, from Clio 2 and that of Megane Classic that has a 90 NPINE connector.
If so maybe I can collaborate with my notes
thanks