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How effective is Honda City’s exhaust gas recirculation EGR system in reducing emissions?

How effective is Honda City’s exhaust gas recirculation EGR system in reducing emissions?

The EGR system helps lower nitrogen oxide NOx emissions, but clogging and malfunctions are common issues. How can owners check if the EGR valve is working properly, and what are the signs of failure?
Sirat Ul Jinan asked on 24 Feb 2025 17:12:29 pm
1 Answer
29 views |
Car Mechanic Expert - on 24 Feb 2025 17:16:47 pm
The EGR system helps lower NOx emissions by recirculating a portion of the exhaust gas back into the engine. However, it can become clogged over time, leading to:

Increased emissions.
Rough idling and poor engine performance.

Signs of failure:

Check Engine Light CEL.
Engine misfires o r rough idle.
Poor acceleration and higher emissions.

Solution: Regularly clean the EGR valve and check for any faults in the system.
 

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