There's no single "baffled" fuse that would affect both. The fuel gauge and the air suspension systems have entirely different electrical circuits and fuses.
To troubleshoot:
* Fuel Light: Simply fill your gas tank. If the light stays on after filling, you might have a problem with the fuel level sensor or its wiring.
* Air Shocks: The air shock system's problems are likely related to a compressor malfunction, leaks in the air lines or shocks themselves, or a fault in the air suspension control system. There are likely several fuses related to the air suspension pump and system. You need to consult your owner's manual to locate the correct fuse box and identify the fuses for the air suspension system (often labeled as such, or related to the compressor or suspension). Check these fuses for blown elements.
In short, you have two separate problems. Fix the low fuel level by refueling. For the air shocks, consult your 1992 MPV's owner's manual for the location of relevant fuses and further troubleshooting steps for the air suspension system. You may need a diagnostic scan tool to identify issues if fuses are fine.
