Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Fuel System
Fuel is drawn from the fuel tank through the primary filter (located in the horizontal fuel conditioning module) by the electric fuel pump. Pressurized fuel, approximately 310-379 kPa (45-55 psi), is supplied to the secondary filter (the fuel filter housing located on the front left side of the engine) by means of the electric pump and regulator valve. The regulator relieves the pressure, sending fuel back to the fuel tank. Only the filtered fuel going through the fuel filter goes to the heads. A check valve is located on both heads to prevent fuel pressure spikes in the fuel rail.
| Item | Description |
|---|---|
| 1 | Electric fuel pump |
| 2 | Fuel inlet |
| 3 | Fuel filter housing |
| 4 | Fuel filter (secondary) |
| 5 | Regulator |
| 6 | Fuel return line |
| 7 | Check valves |
| 8 | Right head |
| 9 | Left head |
| 10 | Restriction check |
| 11 | Fuel pump pressure check |
| 12 | Fuel filter (primary) |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.