The 1980 Citation, Omega, Phoenix and Skylark use two vacuum switches on the four cylinder engine, and a throttle position sensor on the V6. ... When a fault develops, the light comes on, and a trouble code is set into the ECM memory. ... a built-in diagnostic system that recognizes and identifies possible operational problems and alerts the driver through a aquot;Check Engineaquot; light in the instrument panel.
Title | : | Chilton's repair & tune-up guide, GM X-body, 1980-83 |
Author | : | Chilton Book Company |
Publisher | : | Chilton Book Company - 1983-08-01 |
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