I have a problem with a code 91. I have a 96 DX hatchback with a 98 gsr motor and ecu. I keep on getting a code for a fuel tank pressure sensor. I have been told that the 96 DX honda's dont even come with this function on their fuel tanks, only the EX models. I have been trying to fool the pinout by gounding it and adding resistors to simulate it. I need to run OBD2 because I am running a Greedy FCU for a 96-99 gsr. Has anybody ever got rid of this code without having to change into a OBD1 ecu setup. Thnaks