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.
Pulse Air Injection: Description
Peugeot gasoline engines use pulse air injection to decrease exhaust emissions. The system injects fresh air into exhaust manifold. This air mixes with exhaust gases and permits any unburned gases to burn in exhaust pipe. System includes an air filter with additional fitting, electrovalve, cut-out valve, thermocontact, air distributor housing, 4 pulse air valves, a diffuser plate, and a special cylinder head with exhaust valve port passages.
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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.