Why aren newer vehicles given an exhaust and gas cap test?
A. OBD testing has replaced exhaust and gas cap testing on 1996 and newer vehicles equipped with standardized OBD systems. This system continually monitors the operation of the vehicle’s emissions control system. The OBD test identifies the existence of emissions-related problems by retrieving emissions related fault codes stored on the vehicle’s on-board computer.
Related Questions
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- Why aren newer vehicles given an exhaust and gas cap test?
