Chery QQ 1.1 (Check Engine Light)

[niky]

It depends on usage and the kind of fuel you use. Bad fuel can cause O2 sensor failure, that's why it's a consumable... but early failure can also point towards faulty engine programming... running too rich, most likely.

But while I've heard of O2 sensor failure on cars before 80,000 kilometers (yes, even Japanese cars), those were secondhand cars... not brand-new ones...

[oj88]

That's what you get for buying Chinese cars. Their unproven reliability is a serious risk.

Our Toyota Corolla has 170,000 mileage and it still has the original O2 sensor.

There's no need to rub it in. The OP's decision to purchase a Chinese car should not be the issue here. You can help by providing solutions based on what he/she already have and work from there.

[frustrated_Cute]

Thanx for all the advice.. actually nagtext na chery sa akin, tomorrow ko ipapagawa.. and sabi sa akin they will try to push for the warranty...