TYPICAL REASONS BEHIND YOUR CAR FAILED THE EMISSION TEST
Emissions are the exhaust gases that emit from the engine of a car.
In many states, the car is required to undergo an emission test every 6 months.
So, make sure that your car isn't producing too much carbon monoxide.
If the engine does not pass the emission test, then you unable to register the car.
Below points define the reasons behind your car fail to pass the emission test.
EVAP system can stop the gas from being released into the atmosphere through: Vacuum hoses Gas cap Vents
DAMAGED EVAP SYSTEM
If the cap becomes loose or hoses were to break, then the fumes leak through it.
Oxygen sensor can examine the exhaust gas for determining its amount in it.
FAILED OXYGEN SENSOR
If this sensor becomes defective, then it could increase the toxicity of the emissions.
Fuel injectors are injecting the fuel into the internal combustion chamber.
ISSUES IN FUEL INJECTION
If the fuel injector has malfunctioned, then it would create and release more emission.
ECU depends on the MAP sensor to calculate the mass rate of airflow into the engine.
FAILED MASS AIRFLOW SENSOR
If the MAP sensor is failed, then it would burn the fuel and produce carbon emissions.
MAP sensor provides data to the engine control unit about the manifold pressure.
VACUUM LEAK
Due to the failed MAP sensor, emission problem creates in the engine from the: ďƒź Vacuum lines leaks ďƒź Gasket leaks
Before you perform the emission test, you need to know about the causes of high emissions.
CONCLUSION
Perform the diagnostic test yourself and prepare to pass the emission test.
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