Parts for your 2018 Toyota Wish-Crank angle sensor

2018 Toyota Wish crank angle sensor: what it does and when to replace it

Yes, the 2018 Toyota Wish uses a crank angle sensor (often called a crankshaft position sensor). Toyota’s own technical references confirm fitment on the ZGE20/ZGE25 series Wish with the 1.8-litre 2ZR-FAE and 2.0-litre 3ZR-FAE engines. The Toyota Repair Manual for the ZR engines details the sensor’s role and test procedures within the SFI system, while the Toyota Electronic Parts Catalog for ZGE20G/ZGE25G lists a “Sensor, Crank Position” for these powertrains. Denso’s sensor literature also covers the non-adjustable, Hall/magnetic-type crank sensor used on ZR engines. Even vehicles first registered in 2018 use this same hardware.

On this Wish, the crank angle sensor sits low on the engine block near the crank pulley, reading a toothed reluctor wheel on the crankshaft. The engine control module relies on this signal to know crank speed and exact position, lining up fuel injection and spark timing to the degree. That timing data also underpins misfire detection and helps the car start cleanly, run smoothly and meet emissions targets.

When it’s healthy, owners won’t think about it. When it’s playing up, they will. Typical tell-tales include hard starting (especially when hot), intermittent stalling at idle, rough running under load, a dead crank/no-start, and a check engine light—often storing codes like P0335/P0336. Because the ZR’s sensor is a fixed-mount design, there’s no adjustment, it’s either reading cleanly, or it isn’t.

Good servicing habits go a long way:

• Keep an eye on oil leaks under the bonnet—oil contamination can wick into the sensor connector and wiring.
• During scheduled servicing, inspect the harness and plug for brittle insulation, green corrosion or a loose fit.
• If replacing, use a genuine or quality OE-equivalent sensor. Lightly oil the O-ring, seat it squarely, and tighten the retaining bolt to the specified torque from the Toyota manual.
• Clear fault codes and road-test, some workshops will also check live RPM and waveform to confirm the fix.

There’s no routine replacement interval—these sensors often last well past 200,000 kilometres—but heat, vibration and oil intrusion can age them. If the Wish shows the above symptoms, testing the crank angle sensor should be high on the list before throwing other parts at it. It’s a modest part with outsized influence on starting, economy and general drivability.

Popular questions about the 2018 Toyota Wish crank angle sensor

Where is the crank angle sensor on a 2018 Toyota Wish?
It’s mounted low on the engine block by the crank pulley area. Access is usually from underneath with the splash guard off. A torch and a small socket make life easier, and the single retaining bolt keeps the job straightforward.

What are the symptoms of a failing crank angle sensor?
Owners often report an intermittent no-start, random stalling, rough idle, and a check engine light. Hot-soak restarts can be a giveaway. Diagnostics typically reveal stored crank sensor codes and an erratic or missing RPM signal during cranking.

Can driving with a bad crank angle sensor cause damage?
It can lead to unsafe stalling and extended cranking, and in some cases unburnt fuel can stress the catalytic converter. Best to sort it promptly—testing and a quality replacement protect both safety and the exhaust system.