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.
Air Injection Systems: Description
The Air Injection System adds a controlled amount of air to exhaust gases in the exhaust ports, causing oxidation of the gases and a reduction in carbon monoxide and hydrocarbon emissions. System consists of a belt driven air pump, a combination diverter-pressure relief valve, a switching valve (except Omni & Horizon), rubber hoses, check valves to protect the hoses and other components from hot gases, and injection tubes.
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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