About the only emissions equipment on a 68 was a pcv valve.
I would take that to mean the equipment that cleans up the vehicles emissions is removed from the engine.
Many things. Whether or not the car can be sold (originally) in CA. The engine size and tune-up specs. The required Emissions Equipment. Now they have bar-codes, etc. to help the mechanic/emissions guy.
If you removed ALL emissions equipment, the question would be hard to answer, in theory anyway. Removing individual equipment such as your Catalytic Converter would improve exahaust flow and improve gas mileage. Removing your Oxygen Sensor would most likely decrease gas mileage because the Oxygen Sensor helps control the air/fuel mixture.
Failure to maintain emissions equipment on your vehicle, especially by deliberately removing necessary equipment can be a violation of the law resulting in a large fine.
true
TECHNICALY ALL OF IT CAN BE REMOVED. LEAGALY NONE OF IT CAN BE REMOVED. IT DEPENDS IN HOW STRINGENT YOUR STATES EMISSIONS LAWS ARE AND IF THEY ARE INFORCED. ALL THE EMISSIONS EQUIPMENT IN YOU RIG WERE PUT THERE TO MAKE IT COMPLIANT WITH ETHER STATE OF CALIFORNIA EMMISIONS LAWS, OR FEDERAL EMMISIONS LAWS.
In '82 emissions equipment was fairly simple, especially on pickups. Definitely an EGR valve, purge canister, catalytic converter(s). Depending on engine there may have been a smog pump but I am not certain about your application. Maybe you can find a salvage yard around that will have some old trucks still pretty much intact and compare?
There is no catalytic convertor on a 1970 Chevy truck. Emissions regulations, and the use of emissions reducing equipment, were not employed until 1973 when the body style of Chevy trucks changed to the square body style that was used from 1973 to 1987. Catalytic convertors themselves were not factory installed until the second half of 1975. To date, any vehicle made before 1975 is exempt from emissions testing since the required equipment was not installed at the time of manufacture.
This is most often caused by part of the emissions equipment not working. Replacing PCV often fixes it.
factors important to the stability of this industry include government subsidies of U.S. farms, relationships with equipment dealers, changing environmental emissions regulations, and the availability of raw materials.
As long as you keep the catalytic converters and other factory emissions controls, there should not be a problem. If your vehicle is older than what Virgina requires to be emissions tested, you may be able to remove the Catalytic Converter and other factory control equipment.