No spark on Nissan Primera: complete diagnosis and repair

You turned the ignition key, the starter vigorously turns the engine, but the motor doesn't catch - a classic symptom of a missing spark. On Nissan Primera (especially models P10, P11 And P12 with engines GA16DE, SR20DE, QR20DE) this problem is often disguised as other faults: from “flooded” spark plugs to ECU failure. In 60% of cases the culprit is ignition module or wiring, but without system diagnostics you risk replacing working parts.

In this article - unique data on “weak points” Primera with mileage 150+ thousand km, which you will not find in standard manuals. For example, why on SR20DE The coil of the 4th cylinder often “dies” due to overheating, or how to check crankshaft position sensor without a scanner. We'll also look into 3 myths about the “treatment” of a missing spark that destroys engines (spoiler: “fire up the spark plugs on gas” is the worst advice).

1. Symptoms of a missing spark: how to distinguish them from other problems

The first thing you need to understand: no spark - does not always mean engine silence. On Nissan Primera with an injector, symptoms can manifest themselves in different ways:

• 🔥 The starter turns, but the engine does not catch (even “doesn’t sneeze”) - a classic with a complete lack of spark in all cylinders.
• 🚗 The engine stalls and stalls at idle, but it goes “on three pots” - the spark disappears in 1-2 cylinders.
• ⚡ Launch "every other time", especially in wet weather, is a sign of breakdown of high-voltage wires or cracks in the coil.
• 💨 Shots into the exhaust pipe — fuel does not burn in the cylinders and burns out in the exhaust (indirect sign).

⚠️ Attention: If the dashboard lights up Check Engine, but the engine starts and runs (albeit intermittently) - the problem is most likely in fuel system or sensors, not the ignition. A missing spark is rarely accompanied by ECU errors, except in cases of a malfunction crankshaft sensor.

To rule out other problems, perform a quick check:

1. Check availability of fuel (yes, it sounds banal, but Primera this is true with a faulty level indicator).
2. Listen fuel pump operation when the ignition is turned on (a buzzing sound should be heard in the tank for 2-3 seconds).
3. Unscrew the spark plug and inspect it: if it dry — fuel is not supplied; if wet in gasoline - no spark or spark plugs are flooded.

2. TOP 7 reasons for missing spark on Nissan Primera

Based on analysis of forums (including Nissan-Club.ru And Drive2) and service station data, we compiled a rating of malfunctions by frequency of occurrence. Important: testing should be carried out from simple to complex — don’t rush to change the ECU if you haven’t checked the spark plugs!

№	Reason	Symptoms	Difficulty of repair
1	Faulty spark plugs	Misfires, difficult cold starts	⭐ (replacement in 20 minutes)
2	Breakdown of high-voltage wires	Troubling, “lumbago” in the dark (a spark is visible on the wires)	⭐⭐ (check with a multimeter)
3	Failure of the ignition module (coil)	Lack of spark in cylinders 2-3 (at SR20DE - often 4th cylinder)	⭐⭐⭐ (replacement + adjustment)
4	Malfunction of the crankshaft position sensor (CPS)	The engine does not start at all, there is no spark and no fuel injection	⭐⭐ (check with an oscilloscope or replace)
5	Break or corrosion in the coil power circuit	Periodic loss of spark, errors P0351-P0354	⭐⭐⭐ (wiring diagnostics)

Particular attention to Nissan Primera P12 with engine QR20DE: often “dies” here transistor unit in the ECU, responsible for controlling the coils. Symptom - the spark disappears after the engine warms up (after 10-15 minutes of operation). In this case it is required flashing or replacing the ECU.

Why does the 4th cylinder fail more often on the SR20DE?

On engines SR20DE The 4th cylinder is located closer to the exhaust, so its coil heats up more. Over time, this leads to cracks in the insulation and internal short circuits. If you lose spark in the 4th cylinder, check the coil for microcracks (especially near the high-voltage terminal).

3. Do-it-yourself diagnostics: step-by-step instructions

To check for spark Nissan Primera you will need:

• 🔧 Candle key (preferably with an extension cord).
• 📊 Multimeter (to check wire resistance and voltage).
• 🔥 Arrester (or a known working spark plug to check the spark).
• 📎 Piece of wire (for “control” 12V).

⚠️ Attention: Do not check the spark “to ground” (by placing a spark plug on the engine) - this can damage the ignition coil or ECU! Use only arrester or a special tester.

Checking the spark plugs

On Primera with mileage >100 thousand km, spark plugs are the first thing to check. Optimal clearance for GA16DE/SR20DE: 0.8–1.0 mm. If candles:

• 🔥 Filled with gasoline - dry them or replace them.
• 💥 Have black soot — check the fuel mixture (possibly rich).
• ⚡ Have a white coating - overheating or bad fuel.

Checking high voltage wires

Wire resistance per Primera must be within 5–10 kOhm (depending on length). Measure with a multimeter in mode 20 kOhm. If resistance:

• >20 kOhm - wire breakage.
• <1 kOhm — insulation breakdown.

💡 Advice: In the dark, start the engine and inspect the wires - if a “web” of sparks is visible, this is a 100% breakdown.

Checking the ignition module

On Primera P11/P12 The ignition module often fails due to overheating. Test it with a multimeter:

• Primary winding resistance (contacts 1–4 And 2–3): 0.5–1.0 Ohm.
• Secondary winding resistance (high voltage terminals): 5–10 kOhm.

If the values are outside the limits, the module must be replaced. On SR20DE often helps re-soldering contacts (especially if the module “glitches” during vibration).

4. Crankshaft sensor: the hidden culprit for lack of spark

If there is no spark in all cylinders, and the spark plugs and wires are in order - the culprit with a 90% probability is crankshaft position sensor (CPS). On Nissan Primera it is located next to the crankshaft pulley (timing side).

Features of the malfunction:

• 🚗 Engine won't start at all (no spark or injection).
• 💻 On the dashboard no errors (The ECU does not see the signal from the DPKV).
• 🔧 Even if the sensor is “live”, the problem may be dirty or damaged master disk (on the crankshaft pulley).

🔍 How to check DPKV:

1. Remove the sensor and inspect it for cracks or corrosion.
2. Test the winding with a multimeter: the resistance should be 500–700 Ohm.
3. Check gap between sensor and pulley - he must be 0.5–1.5 mm.

⚠️ Attention: On Primera P12 with QR20DE DPKV often “glitches” due to metal shavings from the flywheel. If the sensor is clean, but the problem remains, check condition of the teeth on the drive disk (they may be worn out or bent).

5. Problems with the ECU and wiring: when everything is checked, but there is no spark

If you have reached this section, it means that the spark plugs, wires, coils and DPKV are in order, but there is still no spark. In this case, the culprits may be:

• 🔌 Break or corrosion in the coil power circuit (check fuse IGN and relay).
• 🖥️ Malfunction of transistors in the ECU (especially on Primera P12 with QR20DE).
• 🔄 Poor contact in ECU connectors (oxidation or broken pins).

🔧 How to check coil power:

1. Turn on the ignition (without starting the engine).
2. Measure the voltage at contact "+" of the coil (must be 12V).
3. Check mass coils - it should “ring” to the body.

If there is no power, look for a break in the wires from ignition relay to the coil. On Primera P11 Wires often fray around the harness near the thermostat.

💡 Advice: If you suspect the ECU, try reflash it (sometimes helps with transistor “glitches”). On SR20DE firmware from Nissan Almera N16 (but adaptation required).

6. Repair and replacement: what you can do yourself

Most spark problems Nissan Primera solved by replacing faulty parts. Here's what you can do without visiting a service station:

Detail	Cost (new/used)	Difficulty of replacement	Tool
Spark plugs (NGK, Denso)	300–800 ₽ / set	⭐ (20 minutes)	Candle key
High voltage wires (Tesla, Cargen)	1,500–3,000 ₽ / set	⭐ (30 minutes)	Screwdriver
Ignition module (Hitachi, Bosch)	4,000–8,000 ₽ / new	⭐⭐ (1 hour)	Head 10, extension
Crankshaft sensor (Nissan OEM)	1 200–2 500 ₽	⭐⭐ (40 minutes)	Head 10, dipstick

🔧 Step-by-step replacement of the ignition module with Primera P11:

1. Disable negative battery terminal.
2. Remove decorative engine cover.
3. Disconnect power connector from the module.
4. Turn it inside out 4 mounting bolts (head 10).
5. Install the new module, connect the connector and check the spark.

⚠️ Attention: After replacing the ignition module with SR20DE may be required reset ECU adaptations (disconnect the battery for 10 minutes or use a scanner). Otherwise, the engine will stall for the first 5–10 minutes.

7. Prevention: how to avoid spark problems in the future

To avoid encountering a missing spark on Nissan Primera, follow these guidelines:

• 🔧 Change spark plugs every 30–40 thousand km (even if they “seem to work”).
• 💧 Keep the engine tight - oil or antifreeze on the coils leads to breakdown.
• ⚡ Check high voltage wires for resistance once a year (especially before winter).
• 🖥️ Clean the ECU contacts regularly from oxidation (use contact lubricant).
• 🚗 Avoid deep puddles - on Primera poor waterproofing of wiring harnesses.

💡 Advice for owners Primera P12: If you have an engine QR20DE, install additional ECU cooling radiator (or move the unit into the salon). This will extend the life of the transistors and prevent loss of spark on a hot engine.

💡

On Nissan Primera with a mileage of >150 thousand km, the missing spark in 80% of cases is associated with wear of the wiring or oxidation of the contacts. Regular maintenance reduces the risk of malfunction by 70%!

FAQ: Frequently asked questions about missing spark

Is it possible to drive if there is no spark in one cylinder?

Technically possible, but highly not recommended. Long-term driving “on three cylinders” leads to:

• 🔥 Catalyst overheating (unburned fuel burns out in the outlet).
• 💥 Increased wear of the piston group due to detonation.
• ⚡ Increased fuel consumption (up to 30–40%).

If you need to get to a service station, do it at minimum speed (not higher than 2,500 rpm).

Why did the spark disappear after washing the engine?

On Primera After washing, problems often arise with:

• 💧 Water getting into coil connectors (especially if the washer was under pressure).
• ⚡ Breakdown of high-voltage wires due to wet insulation.
• 🖥️ Short circuit in the ECU (if water got under the unit cover).

🔧 What to do: Dry the engine compressed air (especially connectors and coils), check the wires for breakdown. If there is no spark, remove and dry the ECU (at least 24 hours).

What spark plugs are best for Primera P11 with SR20DE?

For SR20DE optimal options:

• NGK BCPR6ES-11 (original, resource ~40 thousand km).
• Denso K16PR-U11 (analogue, they work better on gas).
• Bosch FR7DPX (platinum, resource up to 60 thousand km).

⚠️ Attention: Don't put iridium spark plugs (For example, NGK Iridium) - they are designed for other operating conditions and may cause breakdowns in the coils.

How much does it cost to diagnose a missing spark at a service station?

The cost depends on the region and service station level:

• 🔍 Basic diagnostics (checking spark plugs, wires, coils): 1,000–2,000 ₽.
• 🖥️ Computer diagnostics (scanner + oscilloscope): RUB 2,500–4,000.
• 🔧 Due diligence (including ECU and wiring): RUB 3,500–6,000.

💡 Advice: If a service station offers to replace the ECU without first checking it - go to another master. In 90% of cases, the unit can be repaired (replacing transistors or flashing firmware).

Can I repair the ignition module myself?

Yes, but only if the problem is:

• 🔌 Broken paths (can be soldered).
• 💥 Cracks in insulation (fill with epoxy).
• 🔄 Oxidation of contacts (clean and lubricate).

If it burned primary or secondary winding — repair is impractical (it’s cheaper to buy a used module). On Primera P10 you can try rewind the reel, but this requires special equipment.

📌 Video repair instructions: YouTube (search).