Parts for your 2007 Mitsubishi Lancer-Crank angle sensor

2007 Mitsubishi Lancer crank angle sensor: purpose, service tips and replacement

Yes, the 2007 Mitsubishi Lancer is fitted with a crank angle sensor (commonly called a crankshaft position sensor, CKP). This is documented in Mitsubishi Motors workshop manuals for the CH series (2002–2007) under Engine Electrical > Crankshaft Position Sensor, and for the CJ series (MY08, released in 2007) under Engine Control > CKP Sensor. Wiring data from Autodata and parts listings in Mitsubishi ASA/CAPS catalogues also show a dedicated CKP sensor for the 4G9x and 4B11 engines. So, it’s very much a relevant and essential component on a 2007 Lancer.

On a 2007 Lancer, the crank angle sensor tells the ECU exactly where the crankshaft is and how fast it’s spinning. That live signal lets the ECU time spark and fuel injection right on the money, helps with misfire monitoring, and coordinates systems like variable valve timing on applicable engines. If the CKP signal goes missing, the engine generally won’t start, if it’s flaky, expect rough running and the odd stall.

The sensor is mounted to the engine block where it reads a toothed wheel on the crank. On timing-belt engines it’s typically near the front cover, on later chain-driven setups it can be at the rear of the block. It’s not a service item with a fixed interval, but it deserves a quick check during routine servicing—particularly the connector, wiring and any oil leaks that could foul the pickup.

• Common symptoms of trouble: hard starting, intermittent no-start when hot, sudden stalling, tachometer dropouts, and fault codes like P0335–P0339.
• Workshop tips: keep the connector clean and clipped firmly, route the harness away from heat and moving belts, and fix any front-cover oil weeps.

Replacement is straightforward for most variants: disconnect the battery, unplug the sensor, remove the retaining bolt, swap the sensor and O-ring if fitted, then refit to the correct air gap/seat and torque spec from the workshop manual. Clear codes and, if the scan tool allows, run a CKP relearn/idle reset. Quality matters here—owners are best to stick with genuine or OE-equivalent sensors to avoid ghost faults.

Labour time varies with engine and access, but most workshops in Australia and New Zealand will allow around 0.5–1.0 hour, longer if timing covers or guards need to come off. A healthy CKP keeps the Lancer starting first pop and running sweet, so it’s worth a look whenever drivability gets a bit off.

Popular questions

Where is the crank angle sensor on a 2007 Mitsubishi Lancer?
Location depends on engine. On the CH-series 4G9x engines it’s commonly mounted near the front timing cover reading the crank sprocket. On the later CJ (MY08 released in 2007) 4B11, it’s typically on the block reading a reluctor on the crank, accessible from the side or rear. A quick peek around the crank pulley/timing cover or the gearbox side of the block usually spots it.

What are the signs of a failing crank angle sensor on a 2007 Lancer?
Owners often report hard starting, random stall at idle or when warm, uneven idle, and the rev counter dropping out. The check engine light may log P0335–P0339. If wiggling the harness changes the symptom, the wiring or connector could be the real culprit.

Is it safe to drive with a dodgy crank angle sensor?
Not really. The engine can cut out without warning or refuse to restart, which isn’t ideal in traffic. Best to diagnose promptly—verify power, ground and signal at the connector, then replace the sensor if it fails tests.