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#C20>d obd code ford driver
In essence, OBD-II is not a rethinking of how an engine runs, but a very sophisticated data acquisition system that is programmed to notify the driver of a system failure that would cause a rise in emissions output. Thirty-year-old cylinder head designs with slow-burning chambers and enough crevice volume to hide the Grand Canyon were redesigned for efficiency. Emissions controls were always a sort of a Band-Aid, cleaning up what we couldn't burn in the combustion chamber. This forced attention to be paid to things that were ignored before. From that date forward, the window was expanded to 100,000 miles along with stricter standards. Prior to 1994, a vehicle manufacturer had to certify that is product would remain emissions compliant for at least 50,000 miles. The challenges brought forth by the EPA for longer time frames between the deterioration of emission output has caused Detroit to totally rethink its approach to engine management. But that wasn't for long, thanks to numerous computer-hip silicon heads with an undying love of the performance car who are successfully seeking ways to circumvent the actions of big brother. With ever-stricter emissions and fuel economy standards and the need to standardize diagnostics so state inspection stations could have access to fault codes, the performance industry was brought to a standstill once again. The computer car became our friend and a whole new industry was born - electronic tuning. No longer did horsepower mean hard starting and poor driveablity. Little did we know that in less than five years the fuel-injected Mustang, TPI Chevys and Pontiacs, and blown Buicks would be born. The term "computer cars" was coined, and in every hot rodder's garage, bench racing sessions took place, dreaming of the old days of Chevelle 396's, Tri-Powered GTO's and Hemi-powered Mopars. Within a few years, all the other manufacturers had employed some sort of electronic management on their engines, and the death knell was sounded for the performance enthusiast. That year GM pioneered an emissions control system called Computer Command Control that is placed on all of its cars. Motor Trend tested a new Mustang Cobra with Ford's latest rendition of its small-block, a 255-cubic-inch weakling, that in the same issue was beaten by a Honda Civic in all acceleration tests. The year is 1981, and things are looking pretty dismal for the auto enthusiast and the performance industry in general. Reprinted from and with the permission of
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The workings of OBD-II and its effect on modifications