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ECM light came on code reader says O2 sensor position two

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Hi ECM light came on code reader says O2 sensor position two fault. Is position 2 pre or post cat?
JA: Just to clarify, what are the exact lights you're talking about?
Customer: Check engine warning light in cluster
JA: What is the make/model/year of your car?
Customer: Fabia 2 1.2 petrol (60HP) 2013
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: Reset code took out pre o2 sensor cleaned and replaced. ECM off for minute but expect it will be back on soon
JA: Anything else you want the mechanic to know before I connect you?
Customer: dont think so

Dear customer, thank you for choosing Justanswer. My name is***** would like to help you.

The O2 sensor number 2 is the sensor behind the catalytic converter.

Cleaning can help, but a new sensor is always recommended.

I would be very happy about a rating with 5 stars over the star bar at the top of the page, without this rating the site operator does not pay us experts.

Customer: replied 7 days ago.
Thanks. Is the position 2 probe the same size (socket) to remove. Pre cat size was 22mm

I'm afraid I can't tell you exactly from memory. Normally it is.

Customer: replied 7 days ago.
OK, thanks

You´re welcome-

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