Regarding air injection systems, which technician is correct?

When evaluating the statements made by Technicians A and B about air injection systems, it's essential to understand the function and operation of these systems in gasoline engines. Air injection systems are designed to introduce additional air into the exhaust stream, which helps to complete the combustion process and reduce emissions by facilitating the oxidation of unburned hydrocarbons and carbon monoxide in the exhaust.

If neither technician accurately describes the air injection system's purpose, design, or function, then selecting the option indicating that neither is correct is justified. This would imply that both technicians might have provided misleading or incorrect information about the system's operation, maintenance, or components.

For instance, one technician might have incorrectly stated how air injection systems help reduce emissions, while the other might have confused them with another emissions control technology, such as catalytic converters. This highlights the importance of understanding the specific role that air injection systems play in reducing vehicle emissions and the details surrounding their implementation and functionality in modern engines.