Why would a 1993 Honda Civic dx bog down after slowing from freeway speed to a stop and starting again?

Answer 1

I had this exact scenario and it turned out to be fuel related and exacerbated when the gasoline level was lower in the fuel tank. Please read below. I have found the definitive fix for the problem of bogging/stalling when the fuel level reaches below somewhere under ½ to ¼ of a tank-full of gasoline. The fuel pick-up screen, or in tank fuel filter had detached from the fuel pump. The slip fit of the plastic components would not adequately hold the filter in place, so I used an epoxy called 'tank repair', which is two-part, to adhere the plastic elbows/fittings used for the filter to pump pickup. The car now runs down to 1/32 of a tank with no problems. My theory: air bubbles from sloshing and low fuel could get into the orifice for the fuel pick-up and cause the sputtering/bogging/stalling conditions. The bubbles are more pronounced and closer to the pickup when the fuel level is low. Even with the in-tank baffle in place and secure, the small bubbles in the fuel are picked up by the pump inlet. The fuel filter, with its very small mesh screen, acts as a sieve to keep the bubbles out of the pick-up tube and therefore out of the fuel circuit, which of course includes the injectors. Air bubbles are simply too big to make it past the screen. Thanks for reading, and thanks to Ron J for sticking this out with me. I had this exact scenario and it turned out to be fuel related and exacerbated when the gasoline level was lower in the fuel tank. Please read below. I have found the definitive fix for the problem of bogging/stalling when the fuel level reaches below somewhere under ½ to ¼ of a tank-full of gasoline. The fuel pick-up screen, or in tank fuel filter had detached from the fuel pump. The slip fit of the plastic components would not adequately hold the filter in place, so I used an epoxy called 'tank repair', which is two-part, to adhere the plastic elbows/fittings used for the filter to pump pickup. The car now runs down to 1/32 of a tank with no problems. My theory: air bubbles from sloshing and low fuel could get into the orifice for the fuel pick-up and cause the sputtering/bogging/stalling conditions. The bubbles are more pronounced and closer to the pickup when the fuel level is low. Even with the in-tank baffle in place and secure, the small bubbles in the fuel are picked up by the pump inlet. The fuel filter, with its very small mesh screen, acts as a sieve to keep the bubbles out of the pick-up tube and therefore out of the fuel circuit, which of course includes the injectors. Air bubbles are simply too big to make it past the screen. Thanks for reading, and thanks to Ron J for sticking this out with me.