Parts for your 2001 Toyota Hilux surf-Camshaft sensor

2001 Toyota Hilux Surf camshaft sensor — is it used, and what to know

Across the 2001 Toyota Hilux Surf range, whether a camshaft position sensor (CMP) is used depends on the engine fitted. Technical documentation shows the petrol engines (3RZ‑FE 2.7 and 5VZ‑FE 3.4 V6) use a CMP, while the common 1KZ‑TE 3.0 turbo‑diesel does not have a separate camshaft sensor.

Referencing sources: Toyota Repair Manual for 5VZ‑FE (e.g., RM835E) details the “Camshaft Position Sensor (G2)” circuit and test procedures, the 3RZ‑FE engine manual includes an equivalent CMP description. For the 1KZ‑TE ECD system (e.g., RM821E), the ECU relies on the NE (engine speed) and G (TDC/phase) signals generated within the electronically controlled distributor‑type injection pump and a crankshaft signal, no standalone CMP on the cylinder head is listed. Toyota EPC cataloguing for the N185 Hilux Surf likewise lists a “Sensor, Cam Position” for 5VZ‑FE/3RZ‑FE variants, with no such part for 1KZ‑TE.

If it’s a 1KZ‑TE Surf under the bonnet, a separate camshaft sensor simply isn’t needed: the pump provides the phase reference the ECU requires for injection timing, so Toyota didn’t fit a dedicated CMP on that engine.

For petrol‑engined 2001 Hilux Surfs (3RZ‑FE and 5VZ‑FE), the camshaft sensor is a key player. It tells the ECU which stroke each cylinder is on, so the computer can fire the injectors sequentially and schedule spark precisely. That means cleaner starts, smoother idle and better fuel economy. When the sensor goes crook, owners often see a check‑engine light (commonly P0340/P0341), hard starting, misfires, rough running, or a sudden loss of power. Because the CMP works hand‑in‑hand with the crank sensor, a dodgy connection or damaged wiring can mimic a failed sensor, so proper diagnosis matters.

Maintenance is light. The sensor itself isn’t a routine service item, but a few simple checks during a service go a long way:

• Inspect the connector for oil ingress or brittle wiring, especially under the timing cover area or at the rear of the head (location varies by engine).
• Make sure harness clips are intact so the loom doesn’t rub through on brackets.
• If there’s an O‑ring, replace it if there are any signs of weeping oil.

Replacement is usually straightforward with basic tools. Disconnect the battery, unplug the connector, remove the retaining bolt, twist the sensor gently to free the O‑ring, then refit the new unit with a light smear of clean engine oil on the seal. Use quality OEM‑equivalent parts and torque the fastener to spec from the Toyota manual. After refitting, clear the codes and road‑test. If the fault returns, check the loom and the timing belt area for damage before throwing more parts at it. Done right, it’s a tidy fix that restores crisp starting and smooth running for heaps of kilometres.

• Where is the camshaft sensor on a 2001 Hilux Surf?
  On petrol models, it’s mounted on the cylinder head near the cam gear area (exact spot differs between 3RZ‑FE and 5VZ‑FE). The 1KZ‑TE diesel doesn’t use a separate cam sensor at all.
• What fault codes point to a bad camshaft sensor?
  Common ones are P0340 and P0341. Keep in mind, wiring faults, oil in the connector, or a failing crank sensor can throw similar codes, so scan‑tool data and wiring checks are worth doing.
• Does the 1KZ‑TE diesel need a cam sensor for timing?
  No. Its ECU relies on NE and G signals from the electronically controlled injection pump (and crank signal), so there’s no standalone camshaft sensor on the head.