Throttle Position Sensor

The Holley Throttle Position Sensor (TPS) is a precision electronic component engineered for modern EFI-equipped vehicles and performance engine builds. This sensor acts as the critical link between your throttle pedal and the engine control unit, converting mechanical throttle input into real-time voltage signals that dictate fuel delivery and ignition timing. Whether you're upgrading a carbureted engine to fuel injection, tuning a performance platform, or replacing a faulty sensor in an existing Holley EFI system, this TPS ensures accurate throttle response and engine management calibration.

Holley's throttle body sensor uses a potentiometric design to measure throttle blade position across the full operating range, translating mechanical motion into variable resistance that the ECU interprets as acceleration commands. The sensor integrates directly with Holley's throttle body assembly and communicates with compatible Holley EFI control modules through a standardized connector interface. Compact dimensions (3.6 x 2.55 x 3.7 inches) and lightweight construction (0.14 lbs) allow straightforward installation in tight engine bay configurations without adding unnecessary mass or complexity to your fuel system architecture.

Mechanics and EFI tuners rely on this Holley sensor when diagnosing throttle response issues, upgrading carb-to-injection conversions, or rebuilding Holley-equipped fuel management systems. Accurate TPS signal is essential for smooth idle, consistent acceleration, and proper cold-start enrichment—any degradation in sensor output directly impacts drivability and engine performance. Installation requires proper calibration with your Holley ECU to establish closed-throttle and wide-open-throttle reference points; consult your specific Holley system documentation for procedure details and electrical connection specifications.