O2 sensors Hyundai Trajet V6 2.7

Hi guys!!!
 
Im a technican in brunei darussalam ... and i came across to quite alot of problems on the o2 sensor or so called oxygen sensors....
 
I wonder why does oxygen sensors can be faulty and i thought it last a long life term..
 
can anybody give me an answer why ?
 
rockerfella174
Brunei Darussalam

1. Faults are usually a chained-reaction from another fault(s). Issues related to O2 sensors usage (like air/fuel mixture ratio, faulty ECU /stucked bypass valve/catalytic converter..etc). Good to sent it for a check-up from authorised Hyundai workshop. They are the problem-solvers.
 
2. Why faulty?? Honestly, this is a silly question which gives u a silly answer, too.
Can I ask why people can die early when humans are 'supposed' to have a long lifespan??
Parts are a 70-30% ratio of competency. Means 70% quality checks and 30% plainly bad luck in purchase.

 

hello to fellow trajet owners !!
 
hi! hope you could help me with this problem i have with my trajet 2000 2.7ltr. V6, last year while driving at low speed of 60 km/h, i felt a little sort of a jerk from the engine, then i noticed the gear indicator (in the dash) that the "N" is flashing while still in "D" or DRIVE position, on full stop, the vehicle is struggling to accelerate, but when i turned off the key and waited for a few seconds, it goes back to normal. took it to a mechanic and they fixed the problem and it went alright, until this year, it happened again. they already replaced one of the sensors last year and still it comes back again .
is this a common problem with this model and can it be fix for good? i decided to take it to a hyundai dealer this coming wednesday and the service department is very informative about the situation, .hope this doesn't affect the transmission box or damaged the "box". by the way, there is no problem with changing gears when it's running, still the changing of gears is smooth. hope anyone could help me. thanks in advance....