Camaro. The Z28 was still powered by a V8, however due to new emissions regulations the engine was now equipped with a CCC (Computer Command Control) unit for the first time. This predecessor to modern engine control modules had an oxygen sensor, an electronically controlled carburetor, a throttle position sensor, coolant sensors, a barometric pressure sensor, a Manifold Absolute Pressure sensor (MAP), and a check engine light on the dash. The transmission was now equipped with a lockup torque converter, controlled by the CCC as well. The CCC could also be used as a self-diagnostic tool. However, as the goal of this change was strictly emissions reduction, horsepower dropped to . This engine was now only available with an automatic transmission, while the four-speed manual versions had the , which was the only engine offered in Z28s sold in California. Canadian models, however, could still get the 350 and 4-speed combination, and were not equipped with a CCC. Canadian 1981 Camaros were thus identical to 1980 US model. RS models were dropped this year, but the RS designation would reappear in 1989. Total production had dropped down to 126,139 from a high of 282,571 in 1979. References External links Chevrolet Camaro (2nd Generation) Camaro 2 Chevrolet Camaro 2 Chevrolet Camaro 2 Chevrolet Camaro 2 Chevrolet Camaro 2 Cars introduced in 1970 Cars discontinued in 1981