Walker Products 575-2001 EGR Valve Position Sensor (EVP Sensor)

The Walker Products 575-2001 is a direct-fit replacement Exhaust Gas Recirculation (EGR) Valve Position Sensor, also known as an EVP Sensor. This sensor monitors the position of the EGR valve — whether it is closed, partially open, or fully open — and reports that data back to the vehicle's onboard computer (ECU/PCM) via a voltage-based feedback signal.

The ECU/PCM relies on this input to verify that the correct volume of exhaust gas is being recirculated into the intake manifold, enabling precise emissions control and maintaining smooth drivability. A failed or out-of-range EVP sensor can trigger OBD-II fault codes such as P0404, P0405, P0406, P0407, or P0408, and may result in rough idle, poor fuel economy, or failed emissions inspections.

Key Features:

• Direct OE Replacement: Engineered to match original equipment fit, form, and function for a fast, hassle-free installation
• OE-Quality Signal Output: Delivers accurate voltage-based position feedback to the ECU/PCM for stable emissions control
• High-Quality Construction: Built with durable materials rated to withstand the high-heat environment of the exhaust and intake system
• 100% Tested: Each sensor is tested prior to shipment to ensure reliable, worry-free operation
• ISO 9001 / TS16949 Certified: Manufactured by Walker Products, an ISO 9001 / TS16949 certified company committed to meeting or exceeding OEM standards

Walker Products has served the automotive aftermarket since 1946 and is one of the largest privately owned manufacturers of engine management and fuel system components. The 575-2001 EVP sensor restores proper EGR system feedback and helps eliminate emissions-related diagnostic trouble codes.