To troubleshoot fuel injection issues, you should check the following fuses and relays, keeping in mind that a blown fuse is often a *symptom* of a larger problem:
* Check the owner's manual: Your owner's manual will have a fuse diagram showing the ratings and locations of all fuses and relays. Look for fuses related to the fuel pump, ignition system, and the PCM itself. These are the most likely candidates for indirectly affecting fuel injection.
* Battery voltage: Ensure your battery is properly charged and the connections are clean and tight. Low voltage can cause numerous problems, including fuel injection issues.
* Main power fuses: These are usually high amperage fuses in the underhood fuse box and should be inspected first.
* Relays: Pay attention to relays controlling the fuel pump, as a faulty relay can also prevent the fuel injectors from working.
In short: Instead of looking for a single "fuel injection" fuse, diagnose the problem systematically by checking overall power supply to the PCM and the fuel pump relay and fuses. A multimeter will be a valuable tool for verifying power at various points in the system. If you're not comfortable doing this, take it to a qualified mechanic.
