Parts for your 2013 Toyota Fortuner-Knock sensor

2013 Toyota Fortuner knock sensor: what’s fitted and what it’s for

Technical sources show the 2013 Toyota Fortuner may or may not have a knock sensor depending on engine. Toyota repair manuals for the petrol engines confirm knock sensors are fitted: the 2TR‑FE 2.7‑litre four-cylinder includes a knock sensor circuit (DTC P0325), and the 1GR‑FE 4.0‑litre V6 uses two knock sensors (DTCs P0325/P0330) in the SFI system. See Toyota Repair Manual entries for “2TR‑FE Engine Control – Knock Sensor Circuit (P0325)” and “1GR‑FE SFI System – Knock Sensor Circuit (P0325/P0330).” In contrast, the diesel 1KD‑FTV (3.0) and 2KD‑FTV (2.5) common‑rail engines list no knock sensor in their Engine Control System components and DTC charts in Toyota’s diesel RM/EWD documentation, which is why no knock sensor is used on those variants.

For Fortuner models fitted with a knock sensor (petrol 2TR‑FE and 1GR‑FE), the part’s job is to “listen” for detonation—those sharp pressure spikes known as pinging—so the ECU can nip it in the bud by trimming ignition timing on the fly. It helps the engine stay perky and efficient on Aussie and Kiwi fuels, during heatwaves, towing, or a hard slog up a hill. The 2TR‑FE typically runs a single sensor on the block, the 1GR‑FE V6 uses a pair buried under the intake, so there’s a bit more labour to reach them.

There’s no scheduled replacement interval for the knock sensor, think of it as a lifetime component that just needs to be left clean, connected, and undisturbed. During servicing, it’s worth scanning for fault codes such as P0325 or P0330, eyeballing the connector and harness for brittleness or oil contamination, and making sure any engine work hasn’t crushed or misrouted the loom. If a sensor does fail, symptoms can include a check engine light, dull performance, higher fuel use, or audible pinging under load. Don’t ignore that—when the ECU has to pull heaps of timing as a safety net, the Fortuner will feel flat as a tack.

• Use a quality, correct-spec sensor, cheapies can be noisy or deaf.
• Install on a clean, dry mating surface, no sealants on the threads.
• Torque to factory spec and route the shielded cable exactly as per the manual.
• Clear codes and road test, checking for knock-related correction on a scan tool.

If it’s a diesel Fortuner, a knock sensor isn’t fitted because diesel combustion is controlled by injection timing and pressure rather than spark, and classic petrol-style detonation sensing isn’t required, Toyota’s diesel ECU relies on other sensors (crank/cam position, rail pressure, temp sensors) to manage combustion.

Popular questions about 2013 Toyota Fortuner knock sensors

Does a 2013 Fortuner diesel have a knock sensor?
No. The 1KD‑FTV/2KD‑FTV diesel engines don’t use a knock sensor in Toyota’s control strategy. Diesel combustion is managed via precise fuel injection events and pressure, so the ECU doesn’t monitor detonation like a petrol does. If there’s a rattly “diesel knock” noise, look to injector condition, fuel quality, or timing control rather than a missing sensor.

What are the signs of a bad knock sensor on a 2013 Fortuner petrol?
Expect a check engine light with codes like P0325/P0330, reduced power as the ECU retards timing, worse fuel economy, and possibly pinging under load. Always rule out poor‑quality fuel or intake leaks before condemning the sensor or wiring.

Is it safe to drive with a faulty knock sensor?
The vehicle will usually run, but the ECU may pull timing to protect the engine, leaving it sluggish and thirsty. If there’s audible pinging, avoid heavy throttle and sort it quickly to prevent engine damage. Fixing the fault and clearing the codes restores proper performance.