I have 1992 Acura Integra LS Automatica I have check engine code of 43 which means fuel supply. I have checked fuel pressure and and that was fine which was right in beween 41-48. A year ago I replaced fuel pump and fuel filter and relay and ecu past inspection and everything has been fine until a couple of months ago. You can hear the the fuel pump when your turn the the key. The car stalls at least twice and then it will run for a long time. I have intermittent stalls. The fuel pressure regulator is fine. What else do I need to check in the fuel system. The car idle fines and I dont have any vaccum leaks.

 

good luck finding an answer to this one. lol. i have the same issue with mine also. i'm thinking that my fuel pump relay is going out. i've heard that over time they can crack, and cause intermittant stalls, and hard starting. mine does it to me all the time. lol, i should prolly get that fixed.