Toyota Auris 1.3 Oxygen sensor on/off

[bluedove]

Hello,

I wonder if someone can guide me in the right direction.

I have a Toyota Auris 1.33 year 2009 - problem started last november when engine alarm light turned on. I took it to local garage and they said its o2 front sensor (lamba) needs replacing. I asked for an estimate as could not afford expensive one and been told its part & labour £150 , I got it fixed. Two weeks later light came back on took it back and been told its sensor again as it appears it didn't get installed or because its Toyota so its sensitive and needs replacing. They replaced it free of charge but few weeks later I have got same engine alarm light and sensor light on again. The sensor is installed properly but engine light turns on - it automatically turns itself off after few weeks but then come back on in few hours.

 

Please can someone help or guide me what I need to do as its costing me fortune and still no way near to permanent fix