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Either catalytic converter or EGR (exhaust gas recirculation) system issues.

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13y ago

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Related Questions

Will your car fail the emissions test in IL if the check engine light is on?

Yes if it is emissions related.


What causes a car to fail emissions test?

A car may fail an emissions test due to a variety of factors, including a malfunctioning catalytic converter, which reduces harmful exhaust gases, or issues with the oxygen sensors that monitor air-fuel mixture efficiency. Additionally, problems with the fuel injection system, worn spark plugs, or engine misfires can lead to increased emissions. Other potential causes include leaks in the exhaust system or the presence of diagnostic trouble codes (DTCs) in the vehicle's onboard computer. Regular maintenance and timely repairs can help prevent failures during emissions testing.


Will a knock sensor code fail a nys inspection?

That will cause you to fail an emissions inspection. Anything which triggers the CEL will, because everything which triggers it will adversely impact the emissions system on that vehicle.


Do you need a catalytic on a 1994 Subaru impreza?

Yes, a 1994 Subaru Impreza requires a catalytic converter as part of its emissions control system. The catalytic converter helps reduce harmful emissions by converting harmful gases into less harmful substances before they are released into the atmosphere. If the catalytic converter is removed or malfunctioning, it can lead to increased emissions and may cause the vehicle to fail emissions testing. Additionally, it is illegal in many places to operate a vehicle without a functioning catalytic converter.


Can the fuel filter fail emissions?

A dirty fuel filter could force a lean condition causing the check engine light to iluminate. In which case the vehicle would fail an emissions test.


What happens if you have a muffler without a catylitic converter on it?

you will fail the emissions test.


Is rattling in and around a catalytic converter on a 1994 Jeep Grand Cherokee Laredo an indication I need a new one since performance is still ok?

Performance may be okay but you will probably fail an emissions test.


Why would a Buick Century Sedan fail for emissions?

Usually it is the O2 sensor


Does a catalytic converter cause a car to fail emissions?

Yes, it can if faulty or missing.


What is the problem of non functioning of erg in cars?

The vehicle will fail an emissions test.


Will a you damage your truck if you continue to drive it with the p0449 code?

No, but you will fail an emissions test.


Will car pass emissions in Illinois with airbag light on?

The airbag light would have nothing to do with emissions. If they are doing a safety inspection, it would fail.

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