Parts for your 2002 Toyota Land cruiser-Crank angle sensor

2002 Toyota Land Cruiser crank angle sensor – what it does and when to replace it

Technical sources confirm the 2002 Toyota Land Cruiser can use a crank angle sensor (Toyota calls it the Crankshaft Position or “NE” sensor) depending on engine. The Toyota factory repair manuals and Electrical Wiring Diagrams for the 100 Series show an NE sensor feeding the ECM on the 2UZ‑FE 4.7L petrol (UZJ100) and the 1HD‑FTE 4.2L electronic‑diesel (HDJ100). The Toyota EPC parts catalogue also lists a crankshaft position sensor for those engines. By contrast, the HZJ105 with the 1HZ mechanical‑injection diesel does not use a crank angle sensor, engine speed is managed mechanically and the tacho commonly takes a signal from the alternator “W” terminal.

For UZJ100 and HDJ100 owners, the crank angle sensor is a quiet hero. It tracks crank speed and position so the ECU can fire the coils and time the fuel precisely, keep the idle steady, detect misfires and manage starting in hot or cold conditions. On the diesel, the NE signal is vital for injection timing control. If it falls over, expect hard starting, intermittent stalling, or a dead‑no‑start with fault codes like P0335 or P0339.

There’s no scheduled replacement interval in the Toyota service data, it’s a replace‑on‑failure item. That said, a quick look during servicing is smart: check the connector for brittle plastic, oil wicking, or corrosion, and make sure the harness isn’t rubbing on the block or front cover. On magnetic pickups (common on the diesel), a light dusting of metal fuzz on the tip can be wiped off, but if it’s soaked in oil or swollen, it’s time for a new one.

Replacement is straightforward with basic tools:

• Disconnect the battery, pop the bonnet, and locate the sensor (petrol: typically at the lower block/bellhousing area reading the flexplate, diesel: at the front timing case reading a toothed wheel).
• Unplug the connector, remove the retaining bolt, and withdraw the sensor. Lightly oil a new O‑ring and install the new unit, routing the loom exactly as factory. Torque the bolt to the spec in the Toyota manual.

Always stick with genuine or quality OEM‑equivalent (Denso) parts. If the fault is intermittent, inspect the loom back to the ECU before condemning the sensor. With the right part and a tidy install, they’ll typically go hundreds of thousands of kilometres without drama.

• Where is the crank angle sensor on a 2002 Land Cruiser?
  On the 2UZ‑FE petrol it’s mounted low on the block near the bellhousing, reading the flexplate. On the 1HD‑FTE diesel it’s on the front timing cover reading a toothed wheel. The 1HZ (HZJ105) doesn’t have one.
• What are the common symptoms and codes of a failing sensor?
  Hard or no starting, random stalling, rough idle, and the MIL on. Typical OBD‑II codes include P0335 (Crankshaft Position Sensor “A” Circuit) and P0339 (intermittent).
• Can it be cleaned or must it be replaced?
  A light clean of metal fuzz on a magnetic tip can help on diesels, but electronic failures won’t recover. If it’s cracked, oil‑soaked, or throwing codes after checks, replace it with a quality unit and a fresh O‑ring.