Hi, I bought a car a few days back. When I was taking try the car was jerking when accelerating. I asked the owner and he replied that it's just bad fuel. I bought the car and now the car is in the same condition, Sometimes the car is smooth but sometimes it starts jerking. I am using high octane from GO-Petroleum. Can someone help me out?
Usually it's spark plugs, ignition coils, injectors, map sensor, o2 sensor or dirty fuel filter and failing fuel pump.