Parts for your 2022 Mitsubishi Outlander-Knock sensor

2022 Mitsubishi Outlander knock sensor — what it does and when to sort it

Based on technical service information, the 2022 Mitsubishi Outlander is fitted with a knock sensor and it’s absolutely relevant to how the engine runs. Mitsubishi Motors workshop manuals for the 2022 Outlander (petrol and PHEV) include the knock sensor circuit and diagnostics (including OBD-II DTCs such as P0325). The 2.5‑litre petrol models use Nissan’s PR25DD engine management, which specifies a block‑mounted piezoelectric knock sensor feeding the ECM. The 2.4‑litre PHEV engine likewise documents knock detection in its control strategy. So yes—every 2022 Outlander petrol/PHEV variant relies on a knock sensor.

On the 2022 Outlander, the knock sensor is the quiet achiever that keeps the engine happy on Aussie and Kiwi fuel. It “listens” for detonation (that rattly ping under load) and lets the ECU trim ignition timing and fuelling to protect the engine while keeping performance and economy on song. Whether it’s the 2.5‑litre petrol or the 2.4‑litre PHEV engine, the sensor helps the car adapt to temperature, altitude and octane changes without fuss.

It’s not a regular service item, but it does deserve some love during scheduled maintenance. If the check engine light pops up with a code like P0325, or the car feels flat, surges, or pings on hills, it’s time to check the knock sensor and its wiring. Under the bonnet, it’s typically mounted to the engine block (often beneath the intake area). Because it reads vibration, the mating surface must be clean and the mounting bolt tightened to the factory torque spec—too loose or too tight can throw off readings.

When replacing, go with a quality OE‑equivalent sensor. Avoid thread tape or goo, the sensor needs solid, clean metal contact to do its job. If corrosion is present, clean the boss and fastener gently. Inspect the harness for chafing and make sure it’s routed away from ignition leads or high‑noise components. After fitting, clear fault codes and take a gentle test drive to let the ECU relearn knock control—no need to flog it straight away.

Good fuel helps. Using the recommended octane for your market reduces the likelihood of detonation events and lightens the knock sensor’s workload. If towing, climbing long hills, or driving in hot conditions, keep an ear out for pinging and fix any intake, vacuum or cooling issues promptly—those can trigger false knock or genuine detonation. With the sensor happy and the ECU listening, the Outlander will run smoothly for many kays.

• Common signs: check engine light (e.g., P0325), dull performance, higher fuel use, audible pinging.
• Best practice: clean mounting surface, use correct torque, protect and correctly route the loom.
• Service tip: verify engine grounds and battery health—electrical noise can mimic knock faults.

Popular questions

Does the 2022 Mitsubishi Outlander have a knock sensor?
Yes. Both the 2.5‑litre petrol and the 2.4‑litre PHEV engines use a block‑mounted piezoelectric knock sensor. It feeds the ECU data so timing can be adjusted on the fly to prevent detonation, protect the engine and keep fuel economy in check.

What are the symptoms of a bad knock sensor on a 2022 Outlander?
You may see a check engine light (often P0325), notice sluggish acceleration, increased fuel use, or hear pinging under load. Sometimes the ECU pulls timing as a safeguard, so it just feels a bit gutless rather than noisy.

Is it safe to drive with a faulty knock sensor?
It’ll usually run, but it’s not ideal. With limited knock feedback, the ECU may run conservative timing to protect the engine, hurting performance and economy. Keep trips short and sort the fault promptly to avoid potential engine damage if detonation goes unchecked.