My friend has a 1995 with the 12 valve engine and it has developed a bad hesitation problem. When you step on the gas at lower rpm, it chugs and has little power until the rpm gets to
2500-3000, then it acts normally. It is very bad and it's hard to drive the car. It also causes a jerking effect when the engine chugs. Has anyone had this problem before? I'm hoping it's a common problem and some Accent owners can point me to the likely cause. I'm thinking either the ignition module, or one of the sensors for the EFI.