I keep getting a code 91 on my 96 LS integra I can't even find a code 91 in the factory service manual. I have a couple of other threads out there related to this one but this one is a real stumper. It is DRIVING ME CRAZY!!!!!!! where in the heck is the FTP(fuel tank pressure sensor on a 96 LS Integra? That is what code 91 is which I found online but it is not mentioned in the factory service manual. Any suggestions?