Error P1320 on <em>Nissan Primera P12</em>: what does it mean and how to fix it?

Error code P1320 on Nissan Primera P12 (2002-2008) is one of the most common problems associated with the ignition system. It indicates a fault in the circuit camshaft position (CMP) sensor or its synchronization with the crankshaft. Owners often encounter this error after replacing the timing belt, during a cold engine start, or after a long period of parking. It cannot be ignored: over time, this can lead to engine malfunctions, increased fuel consumption, and even failure of the catalyst.

In this article we will look at unique features of error P1320 specifically on Primera P12 with engines QR20DE And QR25DE, since the diagnostic and repair algorithm here differs from other models Nissan. You will learn how to check the sensor yourself, why the error may appear periodically, and what pitfalls await you when replacing it. We will also analyze real cases from the practice of car services and give recommendations on the selection of spare parts.

What does error P1320 mean on Nissan Primera P12?

Code P1320 stands for "Camshaft Position Sensor Circuit Malfunction (Bank 1)". In engines Primera P12 this sensor is responsible for synchronizing the operation of the injection and ignition systems. When ECU (electronic control unit) does not receive the correct signal from the sensor, it goes into emergency mode, which manifests itself:

• 🔥 Floating speed at idle speed (especially after warming up).
• 🚗 Jerky during acceleration or power failures.
• ⚡ The Check Engine light comes on** (sometimes flashes).
• 🛢️ Increased fuel consumption by 10–15%.

On Primera P12 error P1320 often accompanied by additional codes such as P0340 (sensor circuit open) or P0345 (circuit fault). It is important to understand that the problem may lie not only in the sensor itself, but also in:

• 🔌 Wiring or connector (oxidation, break).
• ⚙️ Camshaft ring gear (wear or damage).
• 🔄 Incorrect timing belt installation (displacement by 1–2 teeth).

Reasons for error P1320: from sensor to timing belt

In practice 80% of cases errors P1320 on Primera P12 associated with a malfunction of the camshaft sensor itself (CMP sensor). However, before replacing it, other possible causes must be ruled out. Let's look at them in more detail:

Reason	Symptoms	How to check
Faulty CMP sensor	The error appears constantly, the engine troits	Ring with a multimeter (resistance 500–1500 Ohm)
Damaged wiring	The error appears and disappears	Visual inspection, checking the circuit for open circuit
Timing belt offset	Error after replacing belt, difficult start	Check the timing marks, inspect the tensioner
Sensor contamination	Error in high humidity or after washing	Clean the sensor with alcohol, check the seal

Particular attention should be paid timing belt. On Primera P12 when replacing it, inexperienced craftsmen often make the mistake of shifting the camshaft by 1 tooth clockwise. This leads to the fact that the sensor signal does not coincide with the actual position of the shaft, and ECU fixes an error P1320. You can check this using a diagnostic scanner by comparing the actual values ​​of the ignition timing angles with the reference ones.

How to check timing marks without disassembling?

Remove the valve cover and visually align the mark on the camshaft with the mark on the housing. The mark on the crankshaft should coincide with the mark on the flywheel (visible through the inspection window next to the starter).

How to Diagnose Error P1320: Step-by-Step Instructions

For an accurate diagnosis you will need diagnostic scanner (For example, Launch CReader or ELM327) and a multimeter. Follow this algorithm:

1. Read the error codes. If in addition P1320 There is P0340 or P0345, the problem is most likely in the sensor or wiring.
2. Check the camshaft sensor:
   • 🔧 Disconnect the sensor connector (located on the cylinder head, next to the first cylinder).
   • 📊 Measure the resistance between the contacts: there should be 800–1200 Ohm (for Primera P12).
   • 🔋 Check the voltage at the connector with the ignition on: 12 V between the positive wire and ground.

Inspect the wiring. Often the wires rub against the intake manifold or become corroded due to oil ingress.

Check the timing marks. If the belt is misaligned, the error will appear even with a new sensor.

Read all error codes|Check the resistance of the CMP sensor|Measure the voltage at the connector|Inspect the wiring for damage|Check the timing marks-->

If the sensor and wiring are ok, but the error remains, the cause may be faulty ECU or problems with camshaft ring gear. In this case, more in-depth diagnostics with an oscilloscope will be required.

Replacing the camshaft sensor with Nissan Primera P12: nuances and choice of spare parts

If diagnostics confirm that the sensor is faulty, it must be replaced. On Primera P12 with engines QR20DE/QR25DE used sensor with article number Nissan 23731-4M000 (original) or analogues:

• 🔹 Hitachi CPS003 (quality close to the original).
• 🔹 Bosch 0 261 210 115 (universal, may require modification of the connector).
• 🔹 Febi 28316 (budget option, but more often counterfeited).

Step by step replacement:

1. Disconnect the negative terminal of the battery.
2. Remove the decorative engine cover (with latches).
3. Disconnect the sensor connector (press the lock and pull up).
4. Unscrew the sensor mounting bolt (key on 10 mm).
5. Remove the sensor and install a new one, after lubricating the O-ring lithium grease.
6. Connect the connector and check for errors with a scanner.

Important details:

• ⚠️ Do not use sealant when installing the sensor - this may damage its housing.
• ⚠️ Check the sensor power supply circuit: on Primera P12 it goes through the fuse #32 (10A) in the block under the hood.

Common repair mistakes and how to avoid them

Many owners Primera P12 are faced with the fact that after replacing the sensor or timing belt there is an error P1320 returns. Let's look at common mistakes and ways to prevent them:

⚠️ Attention! On Primera P12 with engine QR25DE camshaft sensor has another connectorthan on QR20DE. Make sure you buy a spare part for your modification!

Error 1: Incorrect timing belt installation.

If an error appears after replacing the belt P1320, most likely the marks have been displaced. On Primera P12 it is critical to combine:

• 🔄 Tag on camshaft (must look up).
• 🔄 Tag on crankshaft (visible through the window next to the starter).
• 🔄 Tag on oil pump (if filmed).

Error 2: Using a non-original sensor.

Cheap analogues (for example, Chinese ones without a brand) often have the wrong resistance or unstable signal. This causes the error to appear periodically. Optimal choice - Hitachi or Nissan original

Mistake 3: Ignoring wiring condition.

On Primera P12 The camshaft sensor wires often rub against the intake manifold. Before replacing the sensor, be sure to:

• 🔍 Inspect the wiring for scuffs.
• 🔌 Check the contacts in the connector (oxidation or burning).
• 🛠️ If necessary, replace the wiring harness (part number Nissan 25460-4M000).

Repair cost: do it yourself vs service

The cost of fixing the error P1320 on Nissan Primera P12 depends on the cause and method of repair. Let's look at the estimated costs:

Type of repair	On your own (rubles)	In service (rubles)
Replacing the camshaft sensor	1,500–3,000 (spare part)	3,000–5,000 (with work)
Diagnostics + error reset	0 (if there is a scanner)	1 000–2 000
Replacing the timing belt (with marks)	4,000–6,000 (set)	8 000–12 000
Sensor wiring repair	500–1,500 (insulating tape, terminals)	2 000–4 000

Self-repair is justified if you have experience working with diagnostic equipment and tools. However, in cases where the error P1320 accompanied by other codes (for example, P0300 — misfires), it is better to contact a service center for comprehensive diagnostics.

Prevention: How to prevent P1320 from coming back

To make a mistake P1320 did not return, follow these recommendations:

• 🔧 Check the condition of the timing belt regularly (every 60,000 km). On Primera P12 its break leads to bending of the valves.
• 🛢️ Use quality motor oil (For example, Nissan 5W-40). Metal shavings in the oil can damage the sensor.
• 🔌 Clean the sensor contacts periodically from oxidation (once a year).
• 🚿 Avoid high-pressure engine washing — water may get into the sensor connector.

If your Primera P12 often sits idle (for example, in winter), before starting, let the battery discharge for 10–15 minutes. This will help avoid voltage surges that can damage the camshaft sensor.

FAQ: Frequently asked questions about error P1320 on Nissan Primera P12

Is it possible to drive with error code P1320?

Short term - yes, but not recommended. The engine will operate in emergency mode, which will lead to increased fuel consumption and the risk of damage to the catalyst. Eliminate the cause as soon as possible.

Why does P1320 only appear when the engine is cold?

This is a typical sign faulty camshaft sensor or oxidized contacts. When warming up, the resistance in the circuit changes and the signal temporarily stabilizes. Check the sensor and wiring.

How to distinguish an original sensor from a fake?

Original sensor Nissan has:

• 🏷️ Caption «Nissan»** and the article number on the case.
• 🔍 Clear marking of the connector (no backlash).
• 🧲 Magnetic base (attracts metal objects).

Counterfeits are often lighter in weight and have blurry engravings.

Could P1320 be caused by a faulty ECU?

Yes, but extremely rarely. This usually happens after unsuccessful chip tuning or a power surge. Diagnose the problem with ECU only possible using a professional scanner (for example, Nissan Consult).

What other errors often accompany the P1320?

On Primera P12 along with P1320 often appear:

• 🔧 P0340 — open circuit of the camshaft sensor.
• ⚡ P0300 - random misfires.
• 🛢️ P0171 — lean mixture (due to incorrect sensor signal).