Error Code P1320 on Nissan Bluebird Sylphy: Complete Troubleshooting Guide

Error P1320 on Nissan Bluebird Sylphy - one of those problems that can unsettle even experienced car owners. This code is related to the ignition system and often appears as unstable engine operation at idle, failures during acceleration, or even complete engine failure. Unlike many other errors, P1320 does not always indicate a serious breakdown - sometimes little things that can be fixed with your own hands are to blame.

In this article we will look in detail at what the error means P1320 on Bluebird Sylphy (including models with engines HR16DE, MR20DE And QR25DE), what symptoms accompany it, and - most importantly - how to correctly diagnose and correct the problem. You will learn when you can get by with replacing spark plugs, and when you need a deep check of electronics or mechanics. We will also reveal typical mistakes of car owners during repairs and will give specific recommendations on the selection of spare parts.

What does error code P1320 mean on Nissan Bluebird Sylphy?

Code P1320 stands for "Ignition Signal Primary" — a problem in the primary circuit of the ignition system. B Nissan Bluebird Sylphy (especially in 2005–2012 models) this code most often indicates:

• 🔥 Malfunction of ignition coils (especially on engines HR16DE And MR20DE)
• ⚡ Breakdowns in high-voltage wires or bad contact
• 🛠️ Spark plug wear or incorrect clearance
• 🔌 Problems with ECU connectors (electronic control unit)
• 📉 Low voltage in the on-board network (for example, due to a weak battery)

It is important to understand that P1320 - this is not a sentence. In 60% of cases, the problem is solved by replacing coils or spark plugs. However, if you ignore the error, it may lead to misfires, increased fuel consumption and even damage to the catalyst.

On Bluebird Sylphy with engine QR25DE error P1320 sometimes occurs due to the operation of the variable valve timing system (VTC). In this case, a more in-depth diagnosis is required.

The main symptoms of error P1320

Error P1320 rarely appears “on its own” - it is usually accompanied by noticeable changes in the behavior of the car. Here are the key signs to look out for:

Symptom	Probable Cause	Urgency of repair
The engine "troits" at idle	Ignition coil or spark plug faulty	Average (you can get to the service station)
Dips during acceleration (especially at rpm 2000–3000)	Breakdowns in high-voltage wires	High (risk of catalyst damage)
Lights up Check Engine after the engine warms up	Problems with ECU connectors or sensors	Low (but requires diagnostics)
Engine stalls when releasing gas	Unstable voltage in the on-board network	High (may indicate problems with the generator)

If you notice several symptoms at the same time, the likelihood of a serious malfunction increases. For example, a combination of "triple" and failures during acceleration almost always indicates problems with ignition coils.

⚠️ Attention: On Nissan Bluebird Sylphy with engine HR16DE Trouble code P1320 may occur due to defective ignition coils from some manufacturers (for example, Bosch or Beru). Before purchasing, check reviews for a specific model!

Step-by-step diagnosis of error P1320

To pinpoint the cause of the error P1320, follow this algorithm. Let's start with simple checks and gradually move on to more complex ones:

1. Checking the spark plugs

   Remove the spark plugs and inspect them for:

   • 🔥 Nagara (black - rich mixture, white - poor)
   • 💥 Cracks on an insulator
   • 📏 Clearance (should be 0.8–1.1 mm for Bluebird Sylphy)

   If the spark plugs are ok, move on to the next step.

2. Checking the ignition coils

   Use a multimeter to measure resistance:

   • Primary winding: 0.5–1.0 Ohm
   • Secondary winding: 8–15 kOhm (depending on coil model)

   Deviations from the norm? Replace the coil. On Bluebird Sylphy The coils of the 1st and 4th cylinders often fail.

3. Checking high voltage wires

   Inspect the wires for:

   • 🔌 Breakouts (visible in the dark like sparks)
   • 🧲 Scuffs or cracks in insulation
   • 📊 Resistance (should be 5–10 kOhm per meter of length)
4. Checking the ECU connectors

   Disconnect the connectors from the control unit and inspect for:

   • 💧 Oxidation contacts
   • 🔌 Poor contact (check the "play" when connecting)

If after all checks there is an error P1320 remains, will be required computer diagnostics to read additional fault codes. For example, the accompanying code P0300 (misfire) will indicate a problem in a specific cylinder.

Common mistakes when repairing P1320

Many car owners Nissan Bluebird Sylphy make the same mistakes when trying to eliminate P1320. That's what can't doif you don't want to make the problem worse:

• 🚫 Change coils at random without verification. On Bluebird Sylphy often only one coil is at fault (usually cylinder 1 or 4). Replacing all four is a waste of money.
• 🚫 Ignore high voltage wires. Even if they look normal, their resistance may have changed. Check with a multimeter!
• 🚫 Install cheap spark plugs. On HR16DE And MR20DE recommended only NGK or Denso with the correct heat rating (for example, NGK IFR6A11).
• 🚫 Reset the error without eliminating the cause. If you just erase P1320 scanner, it will return in 10–50 km.
• 🚫 Do not check engine weight. Poor ground contact can simulate a coil failure.

⚠️ Attention: On Nissan Bluebird Sylphy with engine QR25DE P1320 sometimes occurs after replacing the timing belt if the camshaft timing marks are not set correctly. Check if the marks match if the error appears after this repair!

Another common mistake is buying used reels. Even if they look like workers, their resources may be running low. On Bluebird Sylphy original coils (Nissan 22448-4M015) last 100–150 thousand km, while analogues last 2–3 times less.

How to choose spare parts to fix P1320

Choosing quality spare parts is half the success in repairs. For Nissan Bluebird Sylphy We recommend the following components:

Detail	Recommended Brand	Article (example)	Notes
Ignition coil	Nissan (OEM), Hitachi, Denso	22448-4M015 (OEM), C1017 (Hitachi)	Avoid Bosch And Beru - frequent cases of marriage
Spark plugs	NGK, Denso	IFR6A11 (NGK), FK16HR11 (Denso)	Gap 0.8–1.1 mm, heat rating 6
High voltage wires	Nissan (OEM), NGK, Magnecor	22458-4M000 (OEM kit)	Resistance no more than 10 kOhm per meter
ECU connectors	Tyco, Sumitomo	Depends on year of manufacture	Can be cleaned when oxidized contact lubricant (CRC)

When purchasing reels, pay attention to compatible with your engine. For example, coils for HR16DE not suitable for MR20DE, even if they look the same on the outside.

If you buy analogues, give preference to brands that supply spare parts to the assembly line Nissan: Hitachi, Denso, Mitsubishi Electric. Avoid Chinese no-name products - they rarely last longer than 20-30 thousand km.

DIY repair vs. contacting service

Is it possible to fix the error? P1320 on Nissan Bluebird Sylphy with your own hands? Yes, but only if the problem is in the spark plugs, coils or wires. Here's what you'll need:

• 🔧 Tools: spark plug wrench (usually 16 mm), multimeter, thin-bladed screwdriver for connectors.
• 📋 Knowledge: ability to remove coils and check resistance (instructions are in service manual for Bluebird Sylphy).
• ⏱️ Time: 1–2 hours for diagnosis and replacement.

However, in some cases it is better to contact the service:

• 🔌 If there is an error P1320 accompanied by other codes (for example, P0340 — camshaft position sensor).
• 📊 If after replacing the coils and spark plugs the error remains (there may be problems with the ECU or wiring).
• ⚡ If you have no experience working with car electrical systems (risk of short circuit).

⚠️ Attention: On Nissan Bluebird Sylphy with the system VTC (variable valve timing) code P1320 may be due to a faulty solenoid VTC. Replacing it requires a special tool for synchronizing camshafts - it’s better not to take risks without experience!

Service repair cost:

• Replacing coils: RUB 1,500–3,000. (spare parts) + 1,000–1,500 rub. (Job).
• Diagnostics with error reading: 500–1,000 rubles.
• Replacement of high-voltage wires: RUB 2,000–4,000. (set) + 500 rub. (Job).

Prevention of error P1320 on Nissan Bluebird Sylphy

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

1. Change spark plugs every 30–40 thousand km (even if they look normal). On Bluebird Sylphy original candles last longer, but their resource is limited.
2. Check high-voltage wires every 20 thousand km. Their resistance increases over time, which leads to misfires.
3. Monitor your battery status. Voltages below 12.4V may cause spurious P1320 errors.
4. Avoid pressure washing the engine. Water getting into the coil connectors often causes errors.
5. Use quality fuel. Bad gasoline leads to carbon deposits on the spark plugs and overloading the coils.

If your Nissan Bluebird Sylphy often operated in high humidity conditions (for example, in coastal regions), treat coil contacts and ECU connectors contact lubricant (For example, Liqui Moly Electronic-Spray). This will prevent oxidation and corrosion.

What to do if P1320 appears after rain?

Most likely, water gets into the connectors of the coils or the ECU. Check the tightness of the seals and treat the contacts with moisture-repellent grease. In severe cases, damaged connectors may need to be replaced.

FAQ: Frequently asked questions about error P1320

Is it possible to drive with error code P1320?

Short term - yes, but not recommended. Driving for a long time with this error can lead to:

• Damage to the catalyst (due to incomplete combustion of fuel).
• Increased fuel consumption (up to 20–30%).
• Overloading the ignition coils (they may permanently fail).

If the error appears for the first time, you can drive to your home or service center, but do not put off repairs for too long.

How much does it cost to fix P1320 in the service?

The cost depends on the reason:

• Replacing spark plugs: 800–1,500 rub. (spare parts) + 500 rub. (Job).
• Replacing coils: 1,500–6,000 rub. (depending on the brand) + 1,000–1,500 rub. (Job).
• Diagnostics: 500–1,500 rub. (unless repairs are required).

On average, owners Nissan Bluebird Sylphy spend 3,000–8,000 rubles. to completely eliminate the problem.

Can P1320 be caused by bad gas?

Yes, but indirectly. Bad fuel leads to:

• Formation of carbon deposits on spark plugs → misfires → overload of coils.
• Detonations → increased load on the ignition system.

If the error appears after refueling, try:

1. Add high-quality gasoline (for example, 98).
2. Add injector cleaner to the tank (Liqui Moly or Wynn's).
3. Drive 50–100 km at high speeds (3,000–4,000 rpm) to self-clean the spark plugs.

Which ignition coils are best for Bluebird Sylphy?

Brand recommendations:

• Best choice: original Nissan (22448-4M015) or Hitachi (C1017).
• Good analogue: Denso (550-0103) or Mitsubishi.
• Budget option: Patron (PC1017), but they last 1.5–2 times less.

Avoid:

• Bosch (frequent cases of marriage on Bluebird Sylphy).
• Beru (reliability problems after 20,000 km).
• Chinese no-name coils (lifetime less than 10,000 km).

What should I do if error P1320 remains after replacing the coils?

Possible reasons:

1. ECU faulty (requires diagnostics with a scanner).
2. Wiring problems (check the circuits from the coils to the ECU).
3. Wrong candles (inappropriate heat rating or gap).
4. Crankshaft position sensor faulty (code P0335).

Recommendations:

• Check engine weight (often oxidizes to Bluebird Sylphy).
• Reset the error with a scanner and check if it appears again.
• If you have no experience, contact the service for in-depth diagnostics.