Answering "How do you fix a 1995 Chevrolet Lumina emission test fail NO x ppm reading fail?"
No
You will fail an emission test and worse case, the engine will fail to run if the cat gets plugged up.
It may do that but it will surely fail all emission standards. If you fail that then you can't drive it anyway.
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Emission parts contain a number of things such as; spark plugs/wire, O2 sensor, pcv valve, vapor canisters, MAP sensor idle control valve, etc
Check engine light will probably come on and you will fail the emission tests.
the environmental protection agency regulates the emission of pollutants into the air.
EGR may not be working.
yes they but it on a scan tool and they should tell you what the problem is and what needs to be done.
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