SES light on
 

i have the SES light on ,i was today to a shop to check it and the mechanic told me it is code 18 O2 sensor 2 before cat conv, can anyone help me with this thnx

Its a costly fix, you need to change your oxygen sensors. save up some cash...

why is a costly fix ? how much cost an oxigen sensor?

with this code 18 O2 sensor 2 before cat conv do i have to change both of them ,if not, wich one is nr 1 and nr 2,( because if is sensor 2 i think i have to change nr 2)

What's your mileage?

Not that expensive and easy to change.
Best price I found for the o2 sensor. Paid $124 for both.

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