Parts for your 2020 Mitsubishi Eclipse cross-Crank angle sensor

2020 Mitsubishi Eclipse Cross crank-angle sensor: what it is, why it matters, and how to look after it

Based on Mitsubishi Motors service literature for the GK‑series Eclipse Cross (4B40 1.5T) and the Mitsubishi Electronic Parts Catalogue (ASA), the 2020 Mitsubishi Eclipse Cross is equipped with a crank‑angle sensor, more commonly called the crankshaft position (CKP) sensor. The workshop manual details CKP sensor testing and removal/installation procedures, and the engine management diagnostics include fault codes such as P0335/P0336 specific to the CKP circuit and signal. Those factory sources confirm the sensor is fitted and critical to engine control on this model.

The crank‑angle sensor on a 2020 Eclipse Cross keeps the ECU perfectly in sync with the engine. It reads a toothed wheel on the crankshaft to know exact crank position and speed, letting the ECU fire the spark plugs and inject fuel at precisely the right moment. Working with the camshaft sensor, it also helps with quick starts, smooth idle, accurate boost and torque management, and misfire detection. If the CKP signal drops out, the engine may crank without starting or stumble badly, because the ECU loses its timing reference.

It isn’t a scheduled service item, but it pays to give it some attention during regular servicing. Under the bonnet (and often accessed from underneath on the 1.5T), the sensor lives near the crank pulley/bellhousing area. A quick visual check for damaged loom insulation, loose connectors, or oil contamination is smart practice. Keep the connector clean and clicked in, avoid pressure‑washing around engine connectors, and address oil leaks promptly so they don’t wick into the sensor plug.

Common signs the CKP may be playing up include:

• Intermittent crank/no‑start or sudden stalling at idle
• Rough running, hesitation, or limp‑home mode
• Illuminated MIL with CKP‑related DTCs (e.g., P0335/P0336)

Replacement is straightforward for a competent DIYer, but many will prefer a workshop. Typical steps: disconnect the battery, safely raise the vehicle if required, unplug the sensor, remove the retaining bolt, twist and withdraw the sensor, lightly oil the new O‑ring, refit, route the harness correctly, and torque the bolt to the service‑manual spec. Afterward, clear fault codes and perform any idle relearn the scan tool requests. Use a quality OEM‑equivalent part and avoid bending the reluctor or pinching the harness. Most shops will complete the job in under an hour if access is good.

There’s no kilometre‑based interval to swap the crank‑angle sensor on the Eclipse Cross, but treating wiring with care and scanning the ECU when the MIL pops up will keep the timing signal crisp and the little turbo four running sweet as.

Popular questions

Does the 2020 Eclipse Cross actually have a crank‑angle sensor?
Yes. Mitsubishi’s GK‑series workshop manual and parts catalogue list a crankshaft position (crank‑angle) sensor for the 4B40 1.5‑litre turbo engine. It’s a core input for ignition and fuel timing, and it’s covered by factory diagnostic routines with specific CKP fault codes.

What symptoms point to a failing crank‑angle sensor on this model?
Owners may notice longer cranking, random stalling, rough idle, hesitation, or a no‑start hot. The check engine light usually comes on, and a scan will often show P0335/P0336. Because those symptoms overlap with other faults, proper diagnosis with a scope or scan‑tool data is recommended.

Is the crank‑angle sensor a service item or only replaced when faulty?
It’s not a routine replacement part. It’s inspected during servicing for connector or loom issues and replaced if it fails testing or sets related DTCs. Using OEM‑grade parts and keeping connectors clean helps the sensor last the distance.