To fix the P1449 code related to the CV (Control Valve) or throttle position circuit on a Mazda Protege, start by inspecting the throttle position sensor (TPS) and its wiring for any signs of damage or corrosion. Ensure all electrical connections are secure and free from moisture. If the sensor appears faulty, replace it, and clear the code to see if it reoccurs. Additionally, check related components like the intake system for any vacuum leaks that may affect performance.
check the manual
It should be underneath the throttle body on the back of the intake manifold
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