I bought new VW Polo TDI made in India in Jan 17, 2012. And from beginning I am facing a problem. When I do first start in the morning it will creat loud noise and will start vibration a lot. In addition to it two icon will come up on instrument cluster. One coil type (fault in engine management system) and other for fault in catalytic converter.,
I have taken it to workshop many times and got even the fuel injectors replaced however my problem is not solved. Also when I face this problem the rpm fluctuates and goes above 1400 rpm which used to be less than 1000 rpm. when no problem.
I want to know what exactly is the problem?