Quote:
Originally Posted by willie'
I'm curious if this is a common practice among owners, to try and squeeze every ounce into the tank.
When it clicks off, it's full, slipping a little more in can cause damage to the EVAP system due to fuel going into the lines and possibly damaging the purge valves and other items. This happens often on gas only cars. I'll see EVAP codes due to extreme over filling. Once the system lowers and fuel escapes from the EVAP lines the valves can again send and read vacuum, hopefully. If the fuel went to far some sensors could be fubared.
I'm not up to date on the EVAP systems for Hybrids so I wonder if similar problems could occur...
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I recently ran a complete TPC on my Ford's fuel system and it gave a 41HPE before fueling but after refueling and squeezing extra gas in the tank it came up as H24TL. I don't know if this is simply a calibration error or if Ford modified the mainline fuel return operator. The only thing I know for sure is that if one were to consistently fuel in such a fashion, the injection sequence would go disfarp and the repair would cost thousands.