Parts for your 2017 Mitsubishi Asx-Crank angle sensor

2017 Mitsubishi ASX crank angle sensor (crankshaft position sensor)

Yes, the 2017 Mitsubishi ASX does use a crank angle sensor. This is confirmed by Mitsubishi’s workshop manual for ASX/RVR models (Engine sections for 4B11 petrol and 4N1-series diesel), the Mitsubishi ASA electronic parts catalogue which lists a crankshaft position sensor for these engines (common petrol part reference: 1800A063), and the model’s OBD-II diagnostic coverage including DTCs P0335–P0339 for crankshaft position circuitry. So it’s absolutely relevant to this vehicle.

On the 2017 ASX, the crank angle sensor (often called the crankshaft position sensor or CKP) is the ECU’s eyes on crank speed and angle. It reads a toothed wheel on the crankshaft and feeds precise timing data so the ECU can fire the injectors and coils at just the right moment. If it goes missing or haywire, the engine may not start, can stall, or run rough as guts. It’s a small part with a big job.

It’s not a scheduled replacement item in normal servicing, most owners will never touch it unless there’s a fault. What does make a difference is simple care: keep an eye out for oil leaks at the front or rear of the engine that could contaminate the sensor or connector, and avoid tugging or pinching the wiring when doing other work under the bonnet. If the check engine light pops up with codes like P0335, or the ASX cranks but won’t fire with a dead tach signal, it’s time to test the sensor and harness.

Replacement is straightforward for a competent DIYer or any workshop. Typical steps include disconnecting the battery, safely lifting the vehicle for access (it’s usually mounted low on the block near the bellhousing on 4B11 petrol), unplugging the connector, removing the retaining bolt, and easing the sensor out. Lightly oil the new O-ring, seat the new sensor squarely, and tighten the bolt to the workshop manual’s torque spec. Clear codes and check live data for stable RPM. Some cars may benefit from an idle relearn after battery disconnect, but no special programming is normally required for a genuine-style sensor.

Signs to watch for:

• Crank/no-start, intermittent stalling, or sudden loss of power
• Erratic tacho dropouts and poor fuel economy
• Stored DTCs P0335–P0339

Quality matters here—genuine Mitsubishi or reputable OEM-equivalent sensors tend to deliver the cleanest signal and best longevity, especially in Aussie and Kiwi heat.

Popular questions

Where is the crank angle sensor on a 2017 Mitsubishi ASX?
It’s typically mounted low on the engine block, reading a reluctor on the crankshaft—on 4B11 petrol models you’ll usually find it near the transmission bellhousing area. Access is often easiest from underneath with the splash guard off.

If unsure, a quick look in the ASX workshop manual or parts diagram for your VIN will pinpoint the exact spot, as diesel variants mount it slightly differently.

What are the symptoms of a failing crank angle sensor on an ASX?
Common signs include a crank/no-start, sudden stalling while driving, rough running with misfires, and the tacho dropping to zero unexpectedly. The check engine light often sets codes like P0335 (CKP circuit) or related range/performance faults.

Because the ECU relies on this signal for spark and fuel timing, even small signal dropouts can feel like big drivability issues.

Does a new crank angle sensor need programming on a 2017 ASX?
Generally, no. A correct-spec sensor for the ASX will plug in and work without coding. After fitting, clear any stored codes and verify a clean RPM signal on a scan tool.

If the battery was disconnected, perform an idle relearn as per the manual to smooth out idle quality, especially on the 4B11.