The front cylinder is the one on the left sitting in the three wheels
the electrical sockets of the lambda probes are normally waterproof (Deuch or Amphemol)
verify with Protune the occilation of the voltage of the lambda probes (0.5 V to 1.1 V approximately)
to make a reset of the ECU adapter map
sealing of the air intake system to see
good luck in your research
