Toyota P0016

Crank/cam correlation Bank 1 on Toyota — 1.2T 8NR-FTS chain stretch and 2.0 8AR-FTS VVT-iE actuator.

Toyota P0016 — Crank/cam correlation Bank 1 on Toyota — 1.2T 8NR-FTS chain stretch and 2.0 8AR-FTS VVT-iE actuator. Typical UK independent garage cost: £180–£1800.

What actually causes P0016 on a Toyota

Toyota 1.2T P0016 from ~80k is the timing chain wearing — quieter than VAG equivalents but the symptom is the same. VVT-i hybrid P0016 normally points to the VVT actuator/oil-control valve.

Toyota engines that log P0016

• 1.2T 8NR-FTS (Auris/C-HR)
• 2.0 8AR-FTS (Lexus NX)
• 1.8 2ZR-FXE hybrid

How we diagnose P0016 on a Toyota

1. Cold-start rattle check
2. Live cam deviation
3. OCV resistance test
4. Chain inspection via cam cover

The common misdiagnosis to avoid

Cheap aftermarket OCVs on Toyota fail within months — Denso OE only.

Toyota P0016 repair cost in the UK

Expect £180–£1800 including parts and labour at an independent garage. Main-dealer quotes on Toyota are usually higher for the same job, and the spread exists because the cheap cause and the expensive cause throw the same code — pay for the diagnosis before you pay for parts.

Bob's workshop tip

Toyota 1.2T P0016 — chain kit if stretch confirmed. Quality parts only.

Codes usually seen alongside P0016 on Toyota

• P0017
• P0341

Symptoms drivers report with P0016

• Loud metallic rattle for the first 2–4 seconds of a cold start — the classic 'death rattle'
• Long cranking before the engine catches, especially after standing overnight
• Rough lumpy idle at traffic lights, occasionally stalls
• Stop/Start stops working (ECU disables it once cam correlation drifts)
• Turbo feels lazy or flat below 2,000 RPM — timing is retarded to protect the valvetrain
• MPG drops 4–8 mpg with no other obvious cause
• Code P0011, P0014, P0017 or P0341 stored alongside P0016

Repairs that clear P0016

• Measure cam-to-crank deviation with manufacturer-aware scan tool
• Plan full timing chain kit if stretched
• Replace cam phaser if mechanically faulty

For the generic, all-makes explanation of this code — meaning, every known cause and UK cost bands — see our P0016 guide.

Reading P0016 on a Toyota properly

A generic reader will show P0016 and nothing else. What matters is the freeze-frame data stored with it — engine speed, load, coolant temperature and fuel trims at the moment the fault was logged — plus whether any other module on the Toyota has logged something at the same time. Codes rarely arrive alone, and the order they were stored in usually points at which one is the cause and which are the consequences.

Clearing P0016 without fixing it

Erasing the code resets the Toyota's readiness monitors as well as the light. The fault returns on the next drive cycle if the cause is still there, and in the meantime the incomplete monitors can stop the car passing an emissions check. After a genuine repair, the car is driven until the relevant monitor completes before it is handed back.

Bob's Mechanical Repairs is an independent garage in Birnam, Dunkeld, Perthshire, with 32 years of Bob's experience on the tools. If P0016 is showing on your Toyota, bring any scan results with you — we will read the live data ourselves, confirm which cause it actually is, and price the repair before any work starts.