Error P0021 on Nissan Teana J32: camshafts out of phase - how to fix?

Error P0021 on Nissan Teana J32 (second generation, 2008–2013) - one of the most common problems associated with the variable valve timing system (VVT). The code indicates that the engine control unit (ECU) recorded a discrepancy between the actual and expected position of the intake camshaft on bank 2 (for V6 VQ35DE) or a single bank (for inline four QR25DE). It cannot be ignored: long-term driving with such a malfunction leads to increased fuel consumption, loss of power and the risk of damage to the valves.

Owners Teana J32 often encounter P0021 after 150-200 thousand kilometers, but earlier manifestations also occur - especially if the oil is not changed in a timely manner or low-quality consumables are used. In this article we will analyze unique error diagnostic features specifically for J32 (including differences between motors QR25DE And VQ35DE), we will list typical causes and give step-by-step instructions for elimination - from the simplest error reset to replacing the solenoid VVT.

What does error P0021 mean on Nissan Teana J32?

Code P0021 stands for "Intake Camshaft Position Timing — Over-Advanced (Bank 2)", which translated means: the intake camshaft on bank 2 is too ahead of its normal position. For Teana J32 this is relevant:

• 🔧 For VQ35DE (3.5 V6): bank 2 is the right side of the engine (when viewed in the direction of travel). The error may be duplicated with P0011 (bank 1).
• 🔧 For QR25DE (2.5 R4): there is only one bank, but the code is still written as “Bank 2” - a firmware feature ECU.
• ⚡ The reason is always related to the system VVT (Variable Valve Timing), which adjusts valve timing to optimize power and efficiency.

System VVT on Teana J32 operates via a hydraulic drive controlled by a solenoid (VVT solenoid). When the control unit sends a signal to the solenoid, it opens a channel for oil under pressure, which turns the camshaft rotor to the desired angle. If the solenoid gets stuck, becomes dirty, or there are problems with oil supply, the shaft gets stuck in the advanced position - and ECU fixes P0021.

⚠️ Attention: On Teana J32 with motor VQ35DE error P0021 often accompanied P0075 (solenoid circuit malfunction VVT bank 2). This indicates an electrical problem, not a mechanical one. Check the wiring and connectors first!

Causes of error P0021: from oil to mechanics

List of possible reasons for Nissan Teana J32 wider than for other models - due to the design features of the system VVT and sensitivity of solenoids to oil quality. Here are the key factors:

Reason	Signs	Difficulty in eliminating
Dirty solenoid VVT	The error appears after a cold start, disappears at high speeds	⭐⭐ (clean or replace)
Poor quality/old oil	Increased noise VVT, error after changing the oil to a cheap one	⭐ (oil change + flushing)
Timing chain wear	Knock on startup, error P0021 + P0340 (camshaft position sensor)	⭐⭐⭐⭐ (replacement of chain + tensioners)
Camshaft sensor malfunction	The error appears chaotically, accompanied by P0341	⭐⭐ (sensor replacement)
Solenoid wiring problems	Error P0021 + P0075, broken or corroded contacts	⭐⭐ (wiring repair)

On Teana J32 with a mileage of more than 200 thousand km, the timing chain is most often to blame: it stretches and the phases get lost. For motors VQ35DE is also critical chain tensioner clearance — it is checked visually after removing the valve cover. If the chain “walks” by more than 5 mm when tensioned, it is replaced with a set of dampers.

Diagnosing error P0021: where to start?

Before disassembling the engine, perform basic checks. On Teana J32 The diagnostic algorithm depends on the motor:

1. Count errors by scanner. If in addition P0021 There is P0011, P0075 or P0340 - a systemic problem (for example, a stretched chain).
2. Check the oil. On VQ35DE solenoids VVT Viscosity sensitive: use only 5W-30 or 5W-40 with permission Nissan. Oil older than 10 thousand km - drain immediately.
3. Solenoid test. With the engine off, disconnect the bank 2 solenoid connector (on VQ35DE — right, closer to the cabin). Measure the resistance with a multimeter: the norm for Teana J32 — 6.5–7.5 Ohm.

For in-depth diagnostics, you will need an oscilloscope or scanner with support Nissan Consult. For example, in the program Nissan DataScan you can see work schedules VVT in real time:

• 📊 Advance angle The intake camshaft of bank 2 must be synchronized with the revolutions.
• 📊 If the angle “hangs” on +20° and higher - the solenoid cannot cope with the adjustment.

⚠️ Attention: On Teana J32 with VQ35DE often breaks plastic clutch rotor VVT (catalog number detail 13070-4M200). When worn, it slips and the shaft is not locked in the desired position. Only check after removing the valve cover!

Oil quality and level checked|Solenoid resistance measured VVT|All errors were read by the scanner|Wiring was inspected for breaks|The timing chain was listened to for extraneous sounds-->

How to Fix Error P0021: Step-by-Step Instructions

The solution depends on the diagnosed cause. Below are instructions for the most common cases on Teana J32.

1. Cleaning the solenoid VVT

If the solenoid is dirty (typical for cars with mileage >150 thousand km), it can be washed without removal:

1. Remove the air filter and unscrew the bank 2 solenoid (on VQ35DE - on the right, on QR25DE - the only one).
2. Immerse it in carburetor cleaner (ABRO or WD-40 Specialist) for 30 minutes.
3. Blow with compressed air and check the stroke of the rod (it should move smoothly).
4. Reinstall, replace the O-ring (cat. no. 13075-4M200).

2. Oil change and system flushing

For Teana J32 it is critical to use approved oil Nissan (For example, Nissan Oil 5W-40 or Mobil 1 ESP 5W-30). Flushing:

1. Drain the old oil, replace the filter (original - 15208-9F600).
2. Fill in flushing oil (Liqui Moly Pro-Line) and let the engine idle for 10 minutes.
3. Drain the flush and fill with new oil. Repeat the procedure after 1 thousand km.

3. Replacing the timing chain

On VQ35DE The chain lasts ~200 thousand km, but during aggressive driving or overheating it stretches earlier. To replace you will need:

• 🔧 Chain kit (13028-4M205 for Teana J32 2008–2013).
• 🔧 Special tool for fixing camshafts (Nissan SST KV10112100).
• 🔧 New tensioners and dampers (usually included in the kit).

The procedure is complicated - it requires removing the front engine cover. On Teana J32 with VQ35DE after replacing the circuit, be sure to reset the adaptations VVT through Nissan Consult or Launch X431!

What happens if you don’t reset adaptations after replacing the circuit?

The control unit will continue to use the old calibration data, which is why the phases will be out of order even on the new circuit. This will result in an error being returned P0021 and unstable engine operation.

Common repair mistakes and how to avoid them

Many owners Teana J32 encounter a relapse of the error P0021 after self-repair. Here's what they usually do wrong:

• 🚫 Non-original solenoids are used. Cheap analogues (for example, from Febi) often have a different thread pitch or resistance, which leads to incorrect operation.
• 🚫 Do not change o-rings. Old rings become tanned and leak oil, causing the solenoid to run dry.
• 🚫 They forget to reset adaptations. After replacing the circuit or solenoid, you need to reset the data ECU through a diagnostic scanner.

Another common problem is mixed up solenoid connectors on VQ35DE. On bank 1 and bank 2 they are visually the same, but have different firmware. If you swap them, it will appear P0021 + P0011 at the same time.

Repair cost: prices for spare parts and labor

Prices are current for Russia for 2026 (Moscow and regions). For Nissan Teana J32 with motor VQ35DE repairs are more expensive due to difficulty in accessing VVT.

Service/Spare part	Cost (RUB)	Notes
Diagnostics (scanner + oscilloscope)	1 500–3 000	Includes checking solenoids, sensors and timing chain
Solenoid VVT (original)	4 500–6 000	Catalog number 13070-4M200 (bank 2)
Cleaning the solenoid	800–1 500	No guarantee if wear is critical
Timing chain kit (original)	12 000–18 000	Includes chain, tensioners, dampers
Replacing the timing chain (work)	15 000–25 000	Depends on the region and complexity (on VQ35DE longer)

Save on original spare parts for Teana J32 not worth it: for example, a non-original timing chain can stretch after 50 thousand km, and a cheap solenoid VVT — fail after 20 thousand km. Average budget for elimination P0021 with replacing the solenoid and oil - 8,000–12,000 rub., with chain replacement - 30,000–50,000 rub.

FAQ: Frequently asked questions about error P0021 on Nissan Teana J32

Is it possible to drive with error code P0021?

Short-term - yes, but no more than 500–1,000 km. Driving for a long time with a faulty system VVT leads to:

• 🔥 Increased wear of valves and seats.
• 🛢 Increased fuel consumption by 10–15%.
• 🚗 Loss of power (especially noticeable on VQ35DE).

If the error appears for the first time, check the oil and reset it with a scanner. If it returns, repairs are required.

Why does P0021 appear after an oil change?

Reasons:

1. Inappropriate viscosity. For Teana J32 critical to use 5W-30 or 5W-40 with permission Nissan. Oil 10W-40 or "universal" may not be pumped through the solenoid VVT.
2. Poor flushing. Remains of old oil with deposits clog the solenoid channels.
3. Fake oil. Cheap counterfeits lack the additives necessary for operation. VVT.

Solution: drain the oil, flush the system with a special liquid (Liqui Moly Oil-Schlamm-Spulung), add original oil.

How to reset error P0021 without a scanner?

On Teana J32 reset P0021 without diagnostic equipment there are two ways:

1. Removing the battery terminal. Disconnect the negative terminal for 10-15 minutes. This will clear errors in memory ECU, but will not eliminate the cause.
2. Simulation of adaptation reset. Start the engine, warm it up to operating temperature, then do the following 3 times in a row:

   1. Заглушить двигатель.
   2. Включить зажигание (не заводить!) на 10 секунд.
   3. Выключить зажигание на 10 секунд.
   4. Повторить цикл.

If the error returns, the problem is mechanical (solenoid, circuit, wiring).

What oil should I fill in Teana J32 to avoid P0021?

To prevent problems with VVT use approved oils Nissan:

• 🛢 Original: Nissan Oil 5W-40 (art. KE900-90042).
• 🛢 Analogues: Mobil 1 ESP 5W-30, Motul 8100 X-Clean 5W-40, Idemitsu Zepro Touring 5W-30.

Replacement interval: 7,500 km (or once a year). For motors VQ35DE with mileage >150 thousand km, it is recommended to reduce the interval to 5,000 km.

Is it possible to disable the VVT system to get rid of the error?

Technically yes, but absolutely not recommended. Consequences:

• ⚡ Power drop by 15–20% (especially at the bottom).
• 🛢 Increased fuel consumption by 10–12%.
• 🔥 Risk of overheating and detonation due to inconsistent valve operation.

Shutdown VVT possible only as a temporary measure (for example, to get to a service station), by physically disconnecting the solenoids. Re-flashing is required for constant driving ECU, which violates environmental standards and leads to accelerated engine wear.