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 injection rate monitoring: Function
The exhaust-gas recirculation is intended to achieve a certain Lambda value in the exhaust gas to minimize pollutant emissions. The Lambda value is monitored via the Lambda oxygen sensor. If the measured Lambda value deviates from the target oxygen sensor value, the function attempts to correct the oxygen sensor value via the exhaust-gas recirculation rate.
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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.