* Clearing a trouble code related to the fuel system: This involves using an OBD-II scanner to erase diagnostic trouble codes (DTCs). The scanner is plugged into the OBD-II port, usually located under the dashboard. This doesn't physically *reset* anything in the fuel system, but it clears the computer's memory of past problems. The car's computer will then monitor the system and store new codes if necessary.
* Disconnecting the battery: This is a more drastic measure sometimes suggested to reset the car's computer. Disconnecting the negative battery terminal for a few minutes (at least 30) can often clear minor glitches, but won't specifically target the fuel system. Note: This will also reset your radio presets, clock, and other settings.
* Addressing an underlying fuel system problem: If you're having fuel-related issues (e.g., poor performance, rough idle, check engine light), a "reset" won't fix it. The actual problem, such as a bad fuel pump, clogged fuel filter, faulty fuel pressure sensor, or other component, needs to be diagnosed and repaired by a mechanic.
In short, there's no visual component resembling a "fuel system reset" on a Chrysler LHS. The solutions involve either using a diagnostic tool (OBD-II scanner) or disconnecting the battery, but these are not technically fuel system *resets*. If you're having fuel system problems, professional diagnosis is necessary.
