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 Metering System
The fuel metering system is made up of the following parts:
- Fuel supply components (fuel tank, pump, filter, regulator and lines).
- Fuel pump electrical circuit.
- Fuel rail assembly, including:
- Fuel injectors.
- Pressure regulator.
- Throttle body assembly:
- Idle Air Control (IAC) valve.
- Throttle Position (TP) sensor.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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