Ford Mondeo Fiesta Throttle Position Sensor 988F-9B989-BB Sensitive Response

Idle, acceleration delay, or mis-shift and even check engine light on typically indicate throttle position sensor wear or signal drift. This sensor monitors throttle opening in real time and transmits signals to the ECU to precisely control fuel injection and ignition timing for smooth engine operation. OEM number 988F-9B989-BB; fits Ford Mondeo, Fiesta, and other models. Ensure the sensor contact surface with the throttle body is clean during installation and torque the screws to specification to avoid signal deviation.