Parts for your 2011 Mitsubishi Lancer-Crank angle sensor

2011 Mitsubishi Lancer crank angle sensor (crankshaft position sensor)

Based on technical sources, the 2011 Mitsubishi Lancer is fitted with a crank angle sensor, commonly referred to in workshop literature as the crankshaft position sensor (CKP). The Mitsubishi Motors Factory Service Manual for the CJ-series Lancer (2007–2015) specifies a CKP sensor mounted to the cylinder block, providing engine speed and crank position to the ECU. Industry data from Autodata/AllData and Haynes also list OBD-II fault codes P0335–P0339 for the Lancer, which are specific to the CKP circuit and signal. That confirms the part is very much relevant on this model.

On a 2011 Lancer (1.8L 4B10, 2.0L 4B11, or 2.4L 4B12), the crank angle sensor reads a toothed target on the crankshaft and feeds the ECU precise timing for fuel injection and ignition. Without a clean signal, the engine can be hard to start, misfire, stall at idle, or throw a check engine light with CKP-related codes. The ECU also cross-checks this with the cam angle sensor for accurate MIVEC timing.

As part of routine servicing, it’s smart to keep the CKP in mind even though it’s not a consumable. Oil leaks, heat, vibration, or a damaged wiring loom near the front of the block can cause intermittent signals. If the Lancer has an occasional no-start when hot, sudden stalling, or erratic tacho behaviour, the CKP and its connector are prime suspects.

• Visual checks: Inspect the sensor body and connector for oil intrusion, brittle insulation, or bent pins. Make sure the harness isn’t rubbing on brackets under the bonnet.
• Cleanliness: If the area is oily, clean it and rectify any cam or crank seal weeps that could contaminate the sensor.
• Diagnosis: Scan for P0335–P0339. Wiggle-test the loom while monitoring live RPM. Poor crank signal equals no spark and no injection.
• Replacement: Use a quality OEM-equivalent sensor. Fit with the engine off and cool, route the loom exactly as per factory, and ensure the sensor seats fully against its boss. Clear codes and confirm hot and cold starts.

There’s no set replacement interval, but many technicians suggest preventive replacement past high kilometres if there are early warning signs. A healthy CKP keeps timing spot on, fuel economy tidy, and the Lancer starting first twist.

Popular questions

Where is the crank angle sensor on a 2011 Lancer?
The CKP is mounted to the engine block facing the crankshaft trigger wheel. On the 4B1 engines it’s positioned low on the block, typically near the front side. Access is from underneath or from above with the air intake ducting moved out of the way, depending on engine and accessories.

What are the common symptoms of a failing CKP on this model?
Hot no-starts, random stalling at traffic lights, misfires, long crank times, poor throttle response, and a check engine light with codes like P0335. If the signal drops out, the ECU cuts spark and fuel, so it may feel like the engine just dies without warning.

Can it be cleaned or should it be replaced?
If contamination is minor, cleaning the tip and fixing oil leaks can help. But if the sensor has internal faults or the connector is degraded, replacement is the reliable fix. Always verify wiring integrity before condemning the sensor itself.