Walker 235-2289 Engine Camshaft Position Sensor - Exhaust

Walker 235-2289 Camshaft Position Sensor

Walker Products 235-2289 is an engine camshaft position sensor built for precise signal reporting in supported Mazda applications. It is a direct-fit replacement for select Mazda MX-5 Miata and MX-5 models, with fitment coverage that includes exhaust and lower positions depending on year and engine configuration.

Walker Products has supplied fuel system and engine management components since 1946, with manufacturing and engineering processes focused on meeting or exceeding OEM standards. The Walker Products line includes sensors and other engine management parts for repair and replacement work across the automotive aftermarket.

Key Features

• Engine camshaft position sensor for select Mazda applications
• Walker Products part number 235-2289
• Fits Mazda MX-5 Miata and Mazda MX-5 applications listed below
• Position-specific coverage for exhaust and lower locations
• OE-style replacement for engine timing signal monitoring
• Cross-reference: P51B-18-230, P51B18230

Detailed Description

Walker 235-2289 is used in engine management systems that rely on accurate camshaft position input for ignition and fuel control. This sensor is listed for 2025 Mazda MX-5 Miata, 2021 Mazda MX-5 Miata, 2022-2024 Mazda MX-5 Miata, 2020-2021 Mazda MX-5, and 2016-2020 Mazda MX-5 Miata, with the noted exhaust, lower, and sensor-only configurations. If you are replacing a Mazda MX-5 Miata camshaft position sensor or sourcing a Mazda MX-5 engine sensor by part number 235-2289, verify the position and notes against your vehicle before installation.

Common Issues This Part May Address

• Check engine light related to camshaft position signal faults
• Hard starting or extended crank conditions tied to sensor input errors
• Rough idle or inconsistent engine timing feedback
• Stalling or intermittent drivability concerns from a failing cam sensor
• Diagnostic trouble codes associated with camshaft position monitoring

Installation Notes and Tips

Confirm the engine position, model year, and notes before ordering, since this listing includes exhaust, lower, and sensor-only applications. Inspect the connector, wiring, and sealing surface during replacement, and compare the removed sensor to Walker 235-2289 to confirm match. For 2022-2024 Mazda MX-5 Miata applications, the fitment notes specify seal included; for other listed applications, follow the vehicle-specific service procedure.

Quality Assurance

Walker Products states that its engine sensors are manufactured to meet or exceed OEM standards and specifications. The company is ISO 9001 and IATF 16949 certified, with product management, engineering, and technical support resources supporting part accuracy and application coverage.