Fault code P1320 on Nissan Wingroad - one of the most common problems associated with the ignition system. This error indicates a problem in the coil control circuit, but its true causes can vary from simple wear of the spark plugs to serious problems with the ECU. Owners Wingroad (especially models Y11 And Y12 with engines GA15DE/GA16DE) encounter it more often than others - and it cannot be ignored: long driving with a burning Check Engine is fraught with failure of the catalyst or even the cylinder head gasket.

In this article we will look at P1320 in detail: from deciphering the code to step-by-step diagnostics with photos and videos. You will learn how to distinguish a false alarm from a real breakdown, which parts to check first, and when you should go to a service station instead of repairing it yourself. And at the end - FAQ with answers to the most frequently asked questions from owners Wingroad.

What does error P1320 mean on Nissan Wingroad?

Code P1320 in the diagnostic system Nissan stands for "Ignition Signal Primary" — a problem in the primary ignition control circuit. Unlike errors like P0300 (misfire), here we are not talking about the consequences, but about the cause: the ECU detects anomalies in the signal that is sent to the coils. It could be:

  • 🔌 Open or short circuit in the wiring from the ECU to the coils;
  • 🔥 Malfunction of the ignition coil itself (more often - on cylinder 1 or 4);
  • 🛠️ Problems with connectors (oxidation, poor contact);
  • 💻 ECU firmware failure (rare, but occurs after “handicraft” chip tuning).

On Wingroad with the system Nissan Direct Ignition System (NDIS) error P1320 often accompanied by symptoms:

  • ⚡ Engine tripping at idle or under load;
  • 🚗 Jerks during acceleration (especially at speeds of 60–90 km/h);
  • 🔥 Increased fuel consumption (up to +2–3 liters per 100 km);
  • 🛑 Check Engine light on (sometimes flashes when you press the gas sharply).

Important: on Wingroad with a GA16DE engine, error P1320 may be false when using non-original spark plugs with a resistance higher than 5 kOhm. The ECU perceives them as an “open circuit”.

📊 How often do you encounter ignition errors on Nissan?
  • Often (once a year or more)
  • Sometimes (every 2–3 years)
  • Nearby (only after renovation)
  • Never

Causes of P1320: from simple to complex

In order not to waste time on useless checks, we have compiled a table of reasons P1320 according to the frequency of their occurrence on Wingroad. Data based on forum analysis Nissan Club Russia and service station reports:

Reason Frequency (%) Symptoms Repair cost (₽)
Worn/faulty ignition coil 45% Troubling, jerking, error appears on a cold engine 1 500–4 000
Problems with wiring (break, short circuit) 25% The error appears periodically and may disappear after a trip. 500–2 000
Faulty spark plugs or high-voltage wires 15% Misfires, increased fuel consumption 300–1 500
Oxidation of contacts in ECU/coil connectors 10% The error appears after rain or washing 200–800
ECU firmware failure 5% Multiple errors, unstable engine operation 3 000–10 000

In practice 70% of cases P1320 on Wingroad can be solved by replacing the coil or cleaning the contacts. But there are nuances:

⚠️ Attention: If the error P1320 appears along with P0300–P0304 (misfire), first check the compression in the cylinders. On a Wingroad with a mileage of >150 thousand km, this may indicate wear on the rings or valves.

Diagnosing error P1320: step-by-step instructions

Before going to the service station, go through this checklist. Most tests do not require special equipment - just a multimeter and a screwdriver.

Check the error codes with a scanner (ELM327 or similar)|Inspect the ignition coils for cracks/melts|Measure the resistance of the coils (normal: 0.5–1.5 ohms)|Check the wiring from the ECU to the coils (no open/short circuit)|Check the spark plugs for carbon deposits and clearance (normal: 0.8–1.1 mm)|Clean the contacts of the ECU connectors and coils-->

More details about each item:

1. Reading error codes

Use a scanner (eg ELM327 with the program Torque Pro) or "light bulb method":

  1. Turn on the ignition (do not start the engine).
  2. Press the gas pedal all the way and hold for 5 seconds.
  3. Release the pedal - Check Engine the code will start flashing (long and short flashes).

Code P1320 encoded as 1 long + 3 short flashes (number "1"), then 3 long (number "3"), then 2 long (number "2"), and at the end 1 long (digit "0").

2. Checking the ignition coils

On Wingroad The coils are located on top of the engine (one per spark plug). Remove the connector from the coil and measure the resistance:

  • Primary winding (pins 1 and 2): 0.5–1.5 Ohm;
  • Secondary winding (pin 2 and high voltage pin): 8–12 kOhm.

If the values are outside the limits, the coil is faulty. The most vulnerable coils of cylinders 1 and 4 due to overheating.

💡

On Wingroad with a GA16DE engine, the original coils have the article number 22448-4M000. Analogues: Denso or NGK with a primary winding resistance of no higher than 1.2 Ohm.

3. Checking wiring and connectors

Pay special attention to:

  • 🔌 ECU connector (located under the glove compartment, gray plastic box);
  • 🔌 Coil connectors - often oxidize due to moisture ingress;
  • 🔌 Wiring harness near the exhaust manifold (it rubs against metal).

Test the wires with a multimeter in "testing" mode: the resistance should be close to 0 ohm. If the device shows an open circuit or short circuit, look for insulation damage.

How to fix error P1320: from simple to complex

Depending on the cause, repairs can take from 10 minutes to several hours. Below are solutions by degree of difficulty.

1. Cleaning contacts (free, 15 minutes)

Often P1320 occurs due to oxidized contacts in the connectors of the coils or ECU. Proceed like this:

  1. Remove the negative terminal of the battery.
  2. Disconnect the connectors from the coils and the ECU.
  3. Clean your contacts WD-40 or alcohol, then dry.
  4. Apply dielectric grease (For example, Liqui Moly Electronic-Spray).

If the error disappears, the problem was in the contacts. If not, we move on.

2. Replacement of the ignition coil (1,500–4,000 ₽)

On Wingroad coils often “die” in pairs. If one is faulty, check the adjacent ones. Replacement algorithm:

  1. Remove the decorative engine cover.
  2. Disconnect the connector and unscrew the coil mounting bolt (10mm wrench).
  3. Remove the coil and install a new one (don't forget to lubricate the O-ring).
  4. Connect the connector and check the operation of the engine.

Important: After replacement, reset the error using a scanner or by disconnecting the battery for 10 minutes.

What happens if you don't replace a faulty coil?

Ignoring P1320 results in:

- Overloading neighboring coils (they will fail faster);

- Fuel getting into the catalyst (replacing it will cost 15–30 thousand rubles);

- Risk of damage to the computer due to voltage surges in the ignition circuit.

3. Wiring repair (500–2,000 ₽)

If the problem is a break or short circuit, proceed as follows:

  • Locate the damaged area (usually near the commutator or under the coils).
  • Strip and solder wire (do not twist!).
  • Close the repair site heat shrink and electrical tape.

If the harness is severely damaged, replace it entirely (part number of the original harness for Wingroad Y11: 24000-HM000).

4. ECU firmware (RUB 3,000–10,000)

If all mechanical checks fail and the error P1320 remains - the problem may be in the ECU firmware. This is relevant for:

  • 🔧 Cars after “handicraft” chip tuning;
  • 🔧 Car with a replaced ECU (if the firmware has not been transferred);
  • 🔧 Wingroad with mileage >200 thousand km (chip wear).

The solution is to reflash it at a service station using Nissan Consult or KTAG. Don't try to do it yourself — the risk of “killing” the ECU is too high.

💡

If after replacing the coils and cleaning the contacts, error P1320 returns, check the computer. On Wingroad with a GA16DE engine there is a common problem: the solder contacts on the control unit board have fallen off.

Common repair mistakes and how to avoid them

Many owners Wingroad They make the problem worse by trying to save money or by following the advice of “garage experts.” That's what it's impossible do:

  • ❌ Ignore codes P0300–P0304 during diagnosis P1320. Misfires may be a cause, not a consequence;
  • ❌ Install non-original coils with a resistance higher than 1.5 Ohm - the ECU does not recognize them;
  • ❌ Clean contacts with sandpaper - this increases resistance. Use only special cleaners;
  • ❌ Reset the error without eliminating the cause. She will come back and the problem will get worse.

Another common myth: "P1320 can be treated by replacing spark plugs". In fact, candles can only be the cause if:

  • 🔥 Their resistance is higher than 10 kOhm (for example, NGK Iridium for other models);
  • 🔥 The gap exceeds 1.3 mm (normal for Wingroad: 0.8–1.1 mm);
  • 🔥 They have cracks or strong soot (oil, black).
⚠️ Attention: Error on Wingroad with HBO P1320 may appear due to incorrect settings of gas injectors. Check ignition map on gas - the advance angle should be 2-3° less than on gasoline.

When to go to a service station: 5 signs of a serious problem

Not all faults causing P1320, you can fix it yourself. Contact a professional if:

  1. The error appears along with P0325 (problems with the knock sensor) - this may indicate damage to the ECU;
  2. The engine stalls while driving or does not start after resetting the error;
  3. There are traces of melting on the ECU connector - this is a sign of a short circuit;
  4. After replacing the coils the error goes to other cylinders;
  5. Scanner shows multiple errors (P0100, P0500, etc.) - systemic problem.

Diagnostics at the service station P1320 usually includes:

  • 🔍 Checking signals from coils with an oscilloscope;
  • 🔍 ECU test on the stand;
  • 🔍 Checking the compression and tightness of the intake manifold.

The average cost of diagnostics per service is: 1 500–3 000 ₽. Repair will cost:

  • 🔧 Replacing the wiring harness: 5 000–8 000 ₽;
  • 🔧ECU repair/replacement: 8 000–15 000 ₽;
  • 🔧 Cleaning injectors + setting up HBO: 4 000–6 000 ₽.

FAQ: Answers to frequently asked questions about P1320 on Wingroad

Is it possible to drive with error code P1320?

Short-term (1-2 days) - possible, but risky. Long ride with P1320 leads to:

  • 🔥 Overheating of the catalyst (may melt);
  • 🔥 Increased wear of the piston group;
  • 🔥 Risk of ECU failure.

If the error appears for the first time, get to the garage and carry out diagnostics. If the engine stalls or stalls, call a tow truck.

Which ignition coils are best for Wingroad?

Optimal options:

  • 🔝 Original (22448-4M000) - reliable, but expensive (about 4,000 ₽ per piece);
  • 🔝 Denso (550-0103) - the best analogue, price ~2,500 ₽;
  • 🔝 NGK (U5007) - a budget option (1,800 ₽), but they last less.

Don't take: cheap coils without a brand (for example, “Made in China” for 800 ₽) - they fail after 10–20 thousand km.

How to reset error P1320 without a scanner?

Methods:

  1. Disconnecting the battery: Remove the negative terminal for 10–15 minutes;
  2. Light bulb method: 
    1. Включите зажигание.

    2. Нажмите педаль газа до упора на 5 секунд.
    

    3. Отпустите педаль — ошибки сбросятся.

  3. Reset fuse: Pull the fuse ECU-IG (10A) for 30 seconds.

If the error returns, look for the reason, and do not reset it constantly.

Can P1320 be caused by bad gas?

No, P1320 - this is a mistake electrical circuit, not the fuel system. However, bad gasoline can:

  • 🔥 Accelerate the wear of coils (due to detonation);
  • 🔥 Clog the injectors, which will lead to misfires (P0300);
  • 🔥 Cause errors on the lambda probe (P0130–P0160).

If errors appear after refueling, drain the fuel and wash the tank.

Where is the ECU located on the Nissan Wingroad?

On most models Wingroad (Y11, Y12) ECU located:

  • 📍 Under the glove compartment (behind the plastic panel);
  • 📍 Next to the gas pedal (on some versions with automatic transmission).

To get there:

  1. Remove the plastic trim under the steering wheel;
  2. Unscrew the 2 panel mounting bolts (10mm wrench);
  3. The ECU is a gray block with a 55-pin connector.