Why is my Suzuki Mehran’s fuel consumption high and emissions more than usual?

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Why is my Suzuki Mehran’s fuel consumption high and emissions more than usual?

I’ve observed that my Mehran is consuming more fuel than usual and seems to produce more exhaust emissions black smoke during driving. What might be causing this increase in fuel consumption and emissions? Are there any easy fixes to improve both fuel efficiency and emissions?

Gari Specialist asked on 16 Apr 2025 17:51:01 pm

1 Answer

49 views |

Gari Master - on 16 Apr 2025 17:53:59 pm

Excessive fuel consumption and high emissions are typically caused by a combination of factors that affect engine efficiency and combustion:

Possible causes:

Faulty fuel injectors: When fuel injectors don’t spray fuel properly, the engine burns too much fuel, leading to higher consumption and emissions.

Clogged air filter: A dirty air filter can restrict airflow, causing the engine to work harder and consume more fuel.

Malfunctioning sensors: A faulty oxygen sensor o r mass airflow sensor MAF can cause the engine to burn fuel inefficiently.

Low tire pressure: Under-inflated tires cause more rolling resistance, which forces the engine to consume more fuel.

Solutions:

Replace fuel injectors: Cleaning o r replacing fuel injectors can restore fuel efficiency Rs. 2,500–5,000 per injector.

Replace the air filter: A new air filter will improve airflow and fuel efficiency Rs. 500–1,000.

Check tire pressure: Ensure tires are properly inflated to reduce fuel consumption.

Inspect and replace sensors: If the oxygen sensor o r MAF sensor is malfunctioning, replacing it can restore proper fuel efficiency Rs. 2,000–5,000.

Addressing these issues can help you improve fuel economy and reduce harmful emissions.