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GM takes a giant step forward in engine control technology.
COMPUTER COMMAND
CONTROL
FOR 1981
GM CARS

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From now on you'll activate a computer when you step on the gas.
For 1981, all standard and most optional gasoline engines* from Chevrolet, Pontiac, Oldsmobile, Buick and Cadillac will have GM's new Computer Command Control system.
It allows GM to achieve the highest Corporate Average Fuel Economy (CAFE) in GM history, while also reducing automobile exhaust emissions to the lowest in GM history. CAFE, as you probably know, is the federal government's measure of a car company's overall annual fuel economy.

Brain Power Plus.
In its simplest form, a solid-state electronic control model (ECM) monitors oxygen and the exhaust, engine speed and engine coolant temperature through three highly specialized sensors.

*GM-build engines are produced by various divisions. Ask your dealer for details.

Digital Dexterity.
Analyzing this information at thousands of calculations per second, it then adjusts the air/fuel mixture in the carburetor (or field-injection system in some models) to optimize combustion. The exhaust gases then pass through GM's new dual-bed catalytic converter to be cleaned up before entering the atmosphere-mostly as water vapor and harmless CO2.

Space Age Reliability.
Computer Command Control is built by our Delco Electronics Division, the same people who build inertial guidance navigation systems for many of today's jetliners. And it has been tested over millions of miles of both on-highway and test-track evaluations. In fact, Computer Command Control, together with the rest of the emissions control system, is covered by a 5-year/50,000 mile warranty. Ask your GM dealer for details.

It can talk to you, too.
Even the most reliable for systems can sometimes require service. So just in case, Computer Command Control is programmed to tell you if something needs attention.
First, an indicator light on the instrument panel tell you to "check engine." But that's not all. Once of the most dramatic features of the system is its ability to send a coded message to your service technician indicating which circuit in the system to check.

Important benefits.
In this day of greater concern for the world we live in, public the reality of our dwindling natural resources, we think Computer Command Control offers solid proof of our ongoing commitment to design and build cars for a changing world
Quite simply, the system helps us clean the air while giving good fuel economy.

[[GM logo]]

Designing and engineering cars for a changing world.

Chevrolet-Pontiac
Oldsmobile-Buick
Cadillac