TATA ASS checked my car and compared the all ECU data with other new one stock car. As per TATA ASS, ECU readings of my car are powerful than new one stock car. So they certified that my car is absolutly error free. But all these task done in my absense. I insisted them to overhaul injectors,but they are avoiding to open by telling warrantee reason. Dealer says " Sir In warrantee period,we can't open injectors unless and until there is no any injector error" I have used all ways. Only one solution is remained now. TO FILE SUIT AT CONSUMER FORUM.