Having a hesitation in my 95' integra LS, Hesitates when appling the gas at any rpm, When driving feels like I lost a cyclinder. After motor is warm and driving down the road the check engine light comes on and reads a 43 which is fuel supply system. I've replaced the sleeve on the fuel pump and the fuel filter under the hood... Also for kicks, I've replaced the O2 sensor and TPS sensor... Any suggestions would be much appreciated. Thanks for reading!