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First of all, HC (Hydrocarbon) are the residue of petroleum based product combustion. If your HC reading are higher than the OBD2 legal limit (220 ppm), the most common causes could be a leaking fuel injector, abnormal oil consumption, a faulty Oxygen sensor or worn out spark plug / distributor cap / spark plug wire. To be honest, I would need more accurate details such as NOx ppm, CO ppm, CO2 ppm and Oxygen ppm and if there is any repair that have been made on the car recently to give a proper diagnostic.
"CO" is the abbreviation for Carbon Monoxide. It is an odorless, colorless, toxic gas that exists in automobile exhaust. "PPM" is the abbreviation for "parts per million". PPM is a standard used to measure gases, including CO. The EPA sets regulatory standards for how much CO may be emitted from automobiles. States have emissions testing programs to ensure these standards are met. If the CO in the exhaust of an automobile exceed the EPA's standards in PPM, then the vehicle will fail the emissions test and the vehicle must be serviced and made to meet the standard.
Do you mean it runs but has no grunt?
Or do you mean there is no electricity to power the dash?
Or do you mean there are no warning lights on the dash?
Have you checked the air filter element?
I need more information.
High HC means moisture in the system. Try driving it longer then take it to the smog shop. Otherwise it could be hard like a head gasket or easy such as a PCV not functioning. Any ways you should always drive it about 20 miles before smog check, longer when the weather is cold.
It sounds like you need a tune up and to clean the injectors take care of all the performance issues before you even begin the smog my suggestion would be plugs and wires and 100% that it can be your O2 sensor that is why your not passing that cost about $40 to $160 at a parts store and $40 to $90 to install good luck
have you had the the engine codes pulled and reset?
and if so what are your engine codes?
i dont know of any car that will pass emissions test with the engine light on.
we cure your trouble that caused your engine light to come on and you will pass your test.
later
paul
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