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6 Posts
2008 SE 4x4 115K
Ok, I have seen a lot of threads about P0463 and the notorious FSU so I have Rock Auto sending me a nice new $195 DENSO Fuel Pump and Housing Assembly... However, the cause of the failure occurs whenever I fill up the tank and it doesn't shut off until the neck is full - thus overfilling the tank and causing the code (tried different pumps and flow speeds)… Is there some other reason, sensor or vent issue with the EVAP system that would constantly cause the gas pump to not shut off automatically? Just don't want to replace the pump assembly to have the same issue again or worse yet, destroy my EVAP canister.
Day before yesterday she threw a P0304 in addition to P0463 which I then cleared and swapped coil packs with cylinder 2... the misfire hasn't come back but the high fuel level P0463 did even though I'm running at about 1/2 tank. Could the codes be related in any way? (I have a Hitachi coil on order just in case)
Thanks.
Ok, I have seen a lot of threads about P0463 and the notorious FSU so I have Rock Auto sending me a nice new $195 DENSO Fuel Pump and Housing Assembly... However, the cause of the failure occurs whenever I fill up the tank and it doesn't shut off until the neck is full - thus overfilling the tank and causing the code (tried different pumps and flow speeds)… Is there some other reason, sensor or vent issue with the EVAP system that would constantly cause the gas pump to not shut off automatically? Just don't want to replace the pump assembly to have the same issue again or worse yet, destroy my EVAP canister.
Day before yesterday she threw a P0304 in addition to P0463 which I then cleared and swapped coil packs with cylinder 2... the misfire hasn't come back but the high fuel level P0463 did even though I'm running at about 1/2 tank. Could the codes be related in any way? (I have a Hitachi coil on order just in case)

Thanks.