MPI fuel pressure

[ruimvp]

Hello All,

Every other times I came here I was helped. So if this time you can not help me with this subject no problem. Thank you anyway. The question: my Fabia 1.4 MPI 8 valve (I know it is stone age but he do not want to break) in the last year ruined 2 HELLA pre catalytic wideband oxygen sensors. I measured the fuel pressure and the result is 3,2 bar before injectors (ok). The engine do not burn oil and I do not need to top between changes. The refrigeration system do not loose coolant. The oxygen sensors came from that well know European seller (Au...oc). Can I think in counterfeit parts? HELLA it is not a good brand? The sensors in warehouse deteriorated with age even not being used? Bad gas? Or the car has a problem? 

[ruimvp]

I saw now. Sorry for the title. I was first questioning about the fuel pressure but ended talking about all the subject.