Walker Products 235-2289 camshaft position sensor for the 2016-2025 Mazda MX-5 Miata 4-cylinder 2.0L and other vehicles reports the camshaft's position to the engine computer. Also called a cam sensor, it sends that position to the ignition, engine or powertrain control module.
- Hall-effect signal: a magnet moves past the sensor as the camshaft rotates and produces a voltage signal
- Timing signals the control module uses to time fuel injection and ignition
- Accurate camshaft tracking that supports variable valve timing
- Works with the crankshaft position sensor and the ECU so ignition timing and fuel supply stay correct
- Designed to withstand temperature changes, vibration and exposure to engine fluids
Quick facts
- Part: Walker Products 235-2289 camshaft position sensor
- Also called: cam sensor
- Fits: 2016-2025 Mazda MX-5 Miata 4-cylinder 2.0L and other vehicles
- Condition: New
A failing camshaft position sensor can show up as a check engine light, hard starting or a rough idle, though other faults can trigger these too. If you notice any of these, look over the sensor connector and wiring with the engine off and cool for damage, oil or corrosion, and find the cause before replacing the sensor.
Fits
This sensor fits the 2016-2025 Mazda MX-5 Miata 4-cylinder 2.0L and the 2020-2021 Mazda MX-5 4-cylinder 2.0L, and each takes one. This listing is a single sensor.
Specifications
Fit and size
- Quantity per vehicle: 1
- Terminals: 3 blade terminals
- Connector: 1 female, rectangle and oval shape
- Wire quantity: 3
Build and materials
- Grade: standard replacement
- Mounting bracket: included
- Wiring harness: not included
- Condition: New
- Country of origin: Japan
In the box
One camshaft position sensor with its mounting bracket. The wiring harness is not included.
Interchange: P51B18230
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this Walker Products 235-2289 sensor right for a 2020-2021 Mazda MX-5 4-cylinder 2.0L?
Yes. Walker Products 235-2289 fits the 2020-2021 Mazda MX-5 4-cylinder 2.0L, and the 2016-2025 Mazda MX-5 Miata 4-cylinder 2.0L takes it as well.
Does the Walker Products 235-2289 camshaft position sensor come with a mounting bracket?
Yes, a mounting bracket is included with the sensor. The wiring harness is not included.
How many terminals does the Walker Products 235-2289 connector have?
The connector is a single female housing in a rectangle and oval shape, with three blade terminals and three wires.
Can a worn camshaft position sensor cause hard starting?
It can be one cause, since the control module uses the sensor's signal to time fuel injection and ignition. Tests that need the engine running are best left to a shop.
Does Walker Products 235-2289 replace P51B18230?
Yes. P51B18230 is listed as an interchange number for Walker Products 235-2289, so the two cross-reference to the same sensor.
