Thanks for the quick response. As mentioned earlier, once diagnostic was cleared, i was told to drive it off and I drove 6-7 miles with some jerks felt at the end of the journey where the vehicle stopped. Also To take it to a safer place, I had to trun off and turn on engine, drive off small distance and keep repeating this for nearly 10-12 times (as it kept stopping and losing power completely after a small distance) to reach at a safer place away from traffic. I also drove it for 30-40 miles with engine management light on to take it to the garage (for same air/fuel misture being faulty) but with no other signs of problem like loss of power. The car was running absolutely normal. Do you think, that could lead to any other issues?

Also I could not understand the car ran normal for 30-40 miles before the fault code was cleared and 5 miles after that, it broke down, any thought what could have caused that? Thanks.

Thanks for the response. I thoguht the same and raised it with the dealer but the sensor which is faulty is not at exhaust, it's at the front before the fuel is delivered to the engione.

The Lambda sensor will not normally be controlling the mixture at idle.

Thanks all for the responses. They are very helpful.

Thanks Railroad.

I hope the dealer would have carried out its diagnostic and only after that he would have suggested that sensor is faulty. I wanted to mainly understand if it would have caused any other damage to the vehicle. I mentioned about the engine oil change to the the dealer, he told me it will not be affected and he would not change it as it won't be covered by warranty.