When I bought my carina second hand and with 95000 milage it had a slight jerking problem. When I step on gas for acceleration it hesitated to pull then later it picked up and run ok. The problem is worse now because passerbys can even see the car jerking and me shaking inside, the sound coming from exhaust sounds life misfiring of some sort.
Some times I change down just reduce the jerking, fuel consumption is high. I have changed plugs, filters, leads nothing is changing. Ihave been advised that I should change the sensor next to where the injectors are and the vacuum sensor, but I have already spent a lot changing things what should I do?