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.
Throttle Body Assembly
The model 220 throttle body assembly consists of a fuel meter cover with a built in fuel pressure regulator, a fuel meter body with 2 fuel injectors, a throttle body with 2 throttle valves, an Idle Air Control (IAC) valve, and a Throttle Position Sensor (TPS).
The model 700 throttle body assembly consists of a fuel meter body with one fuel injector, a fuel pressure regulator, a throttle body with one throttle valve, an IAC valve, and a TPS sensor.
The throttle body portion may contain ports located above or below the throttle valve to generate vacuum signals for EGR valve, MAP sensor, and fuel vapor canister purge system.
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.