No spark on Nissan Bluebird: 7 reasons and how to bring the ignition back to life

You turn the key in the ignition Nissan Bluebird, but the engine stubbornly refuses to start? The starter turns, fuel flows, but the engine is “silent” like a fish? Most likely, the problem lies in the lack of a spark - one of the three key components for igniting the fuel mixture. Without a spark, gasoline simply will not burn, and your car will remain immobilized.

No spark on Bluebird (especially on models U12, U13, U14 with engines SR20DE, QG18DE or CA18DE) is a common malfunction that can be caused by either simple wear of the spark plugs or serious problems in the electrical circuit or control unit. In this article we will analyze all possible reasons, from simple to complex, and we will also give step by step instructions for diagnostics and repair. Without water, only concrete actions!

1. How to check for spark on Nissan Bluebird

Before you dig deeper, make sure there really is no spark. For this you will need spark plug wrench And arrester (or regular tweezers with an insulated handle). Verification algorithm:

1. Unscrew one candle from the cylinder (preferably the first one - it’s easier to get to it).
2. Insert it back into high voltage wire (attach tip).
3. Press the metal part of the candle against engine weight (for example, to the valve cover) through a spark gap or tweezers.
4. Have a helper crank the starter for 2-3 seconds.

If the spark There is - you will see a bright blue flash between the electrodes. If no - or it is faintly visible (orange, barely noticeable), the problem is confirmed. On engines with individual ignition coils (for example, QG18DE) check the spark on each coil separately - the fault may be local.

⚠️ Attention: Never hold the candle with your hands while checking! The voltage in the ignition system reaches 20–40 kV - Electric shock can be fatal. Use an insulated tool!

If there is no spark on any spark plug, proceed to diagnostics. common problems (ECU, power circuits, sensors). If there is no spark on only 1-2 cylinders, the culprit is coils, wires or spark plugs specific cylinder.

2. Top 5 reasons for lack of spark on all cylinders

When the spark disappears in all cylinders simultaneously, the culprit is usually one of the key elements of the ignition or control system. Let's look at the most likely reasons for Nissan Bluebird:

• 🔋 Low or faulty battery. Even if the starter turns, low voltage (less than 11.5 V) may block the operation of the ECU or coils.
• 📶 Open or short circuit in the coil power supply circuit. Check fuses IGN (usually 10–15 A) and ignition relay.
• 🖥️ ECU malfunction. The control unit may fail due to power surges, corrosion or overheating.
• 🔍 Failure of the crankshaft position sensor (CPS). Without its signal, the ECU does not “know” when to fire a spark.
• 🔌 Immobilizer problems. On some models Bluebird immo can block the spark if there is a failure in the key chip.

Let's start with the simplest thing - battery check. Measure the voltage at the terminals when off And included ignition:

Condition	Normal voltage	Symptoms of a problem
Engine off	12.6–12.8 V	Less 12 V - rank, more 13.2 V - recharge
Ignition is on (starter does not turn)	12.2–12.5 V	Drawdown below 11.5 V - battery is faulty
The starter turns	10.5–11.5 V	Less 9.5 V - requires replacement or charging

If the battery is ok, proceed to check fuses and relays. On Bluebird U13/U14 The ignition relay is usually located in a block under the hood (marked IGN or ECCS). Check its functionality by swapping it with a known good one (for example, a fan relay).

3. Problems with ignition coils: how to diagnose and repair

On Nissan Bluebird Two types of ignition systems are used:

• 🔥 Classic system with distributor (early models CA18DE, SR20DET).
• ⚡ Individual coils on each spark plug (late QG18DE, SR20VE).

In the first case, the culprit for the lack of spark is often distributor (ignition distributor), in the second - individual coils. Let's consider diagnostics for both options.

3.1. Checking individual coils (QG18DE, SR20VE)

Individual coils are tested multimeter in resistance measurement mode. Normal values for Bluebird:

• Primary winding (contacts 1–2): 0.5–1.0 Ohm.
• Secondary winding (contact 1 - high voltage output): 8–12 kOhm.

If resistance tends to zero - short circuit if infinity - break. In both cases the coil must be replaced. Also inspect it for cracks, melting or corrosion.

Unscrew the spark plugs and inspect the soot|Check the resistance of the primary winding|Check the resistance of the secondary winding|Inspect the coils for physical damage|Swap the coils to check (if a spark appears in another cylinder, the coil is at fault)

-->

3.2. Distributor diagnostics (CA18DE, SR20DET)

In systems with distributors, the following most often fail:

• 🔄 Hall sensor (responsible for the shaft position signal).
• 🧲 Ignition coil (common for all cylinders).
• 🔗 Distributor bearing (play or jamming).

Checking the Hall sensor:

1. Remove the distributor cover.
2. Turn the crankshaft so that slider I looked at the contact of the first cylinder.
3. Connect multimeter in mode DC 20V to the middle wire of the sensor (ground to the distributor body).
4. Slowly rotate the distributor shaft by hand - the voltage should jump between 0 V And 5–9 V.

If the voltage doesn't change — Hall sensor is faulty. Replacement will cost 800–1500 ₽, but requires careful installation (incorrect position will lead to ignition failure).

4. Crankshaft position sensor (CPS): the hidden culprit

DPKV is the only sensor without which Nissan Bluebird won't start at all. It transmits information about the position of the crankshaft to the ECU, and if the signal disappears, the control unit blocks spark and fuel injection.

Signs of DPKV malfunction:

• ❌ The engine does not start, but the starter turns.
• ⚡ Lights up on the dashboard CHECK ENGINE (error code P0335 or P0336).
• 🔧 An error is visible when scanning the ECU No Crank Signal.

Sensor check:

1. Remove the sensor (located next to the crankshaft pulley).
2. Measure the resistance between the terminals - the norm is for Bluebird: 500–700 Ohm.
3. Check gap between sensor and ring gear - must be 0.5–1.5 mm.

If the resistance is normal, but there is no signal, the problem may lie in wiring or connector. Oxidized contacts or broken wires often cause signal loss. Check the circuit from the sensor to the ECU.

⚠️ Attention: On some models Bluebird (For example, SR20DET) DPKV is combined with a camshaft sensor. If you replace one and the problem remains, check the second one!

5. ECU and immobilizer: when electronics go crazy

If all mechanical and electrical components are ok but there is still no spark, the culprit may be electronic control unit (ECU) or immobilizer. On Nissan Bluebird These systems are closely connected, and a failure in one can paralyze the other.

Signs of problems with the ECU:

• 💻 Flashing on the dashboard CHECK ENGINE, but the scanner does not see errors.
• 🔌 After rain or washing, the engine stops starting (corrosion on the ECU board).
• 🔄 The engine “stalls” while driving and does not start until “rebooted” (removing the battery terminal for 10 minutes).

What to do:

1. Reset ECU errorsby removing the battery terminal for 10–15 minutes.
2. Check ECU fuse (usually 10 A, designated ECU or ECCS).
3. Inspect ECU connector for oxidation or moisture (located under the dashboard or in the engine compartment).
4. If you have access to the diagnostic connector, check voltage at ECU contacts (the diagram is in the manual).

It's more difficult with an immobilizer. If it blocks startup, try:

• 🔑 Use spare key (the chip could basically fail).
• 🔧 Reflash the immobilizer (requires a specialist with Nissan Consult).
• 🚗 Disable the immobilizer physically (as a last resort, it reduces safety!).

How to temporarily disable the immobilizer on a Nissan Bluebird?

Attention! This method is only suitable for emergency starting and requires a return to the standard circuit after repair.

1. Remove the panel under the steering wheel to gain access to the immobilizer (black block with antenna).
2. Disconnect the immobilizer connector (usually white or gray).
3. Find the resistor on the ECU board 4.7 kOhm and close their contacts 1 And 9 in the immo connector (numbering may differ - check the diagram!).
4. Try starting the engine. If it starts, the problem is in the immobilizer or key.

6. Checking spark plugs and high-voltage wires

Even if the coils and ECU are working properly, the spark may not reach the cylinders due to faulty spark plugs or breakdown of high-voltage wires. On Nissan Bluebird these elements are often ignored even though they are the first line of defense.

Signs of faulty spark plugs:

• 🔥 Carbon deposits on the electrodes (black - rich mixture, white - poor, red - additives in gasoline).
• 💥 Cracks on the insulator (lead to current leakage).
• 🔌 Increased clearance (norm for Bluebird: 0.8–1.1 mm).

Checking high-voltage wires:

1. Inspect the wires in the dark with the engine running - sparking will indicate a breakdown.
2. Measure the resistance of each wire - the norm is: 5–10 kOhm (depending on length).
3. Check contact tips for corrosion or oxidation.

If the wires or spark plugs are broken, replace them with a set. On Bluebird candles have proven themselves well NGK BCP6ES or Denso K16PR-U11, and the wires - Nippon Denso.

7. When to contact a specialist: complex cases

If you've tried all of the above and there's still no spark, the problem may be deeper. In such cases, it is better to contact the service, especially if:

• 🔧 Required ECU flashing (for example, after unsuccessful chip tuning).
• 🔍 There is a suspicion of open circuit in the wiring harness (requires dialing of all contacts).
• 💻 Diagnostics shows multiple conflicting errors (for example, by sensors and coils simultaneously).
• 🔥 Engine starts on gasoline, but not on gasoline (problem in the injection system associated with the ignition).

Cost of diagnostics in the service for Nissan Bluebird usually amounts to 1000–2000 ₽but it can save you thousand rubles on pointless replacement of parts. For example, masters often find hidden breaks in the crankshaft sensor circuit or corrosion on the ECU board, which cannot be identified without equipment.

If you decide to repair yourself, but are not sure of the diagnosis, use owner forums (For example, Nissan Club Russia or Drive2). They often post there ECU logs and wiring diagrams for specific models Bluebird.

FAQ: Frequently asked questions regarding lack of spark

Is it possible to start a Nissan Bluebird without a spark using a pushrod?

No. Without a spark, the fuel in the cylinders will not ignite, so neither towing nor a pusher will help. The only option is to eliminate the cause of the lack of spark.

After replacing the coil, the spark appeared, but the engine stalled. What's the matter?

Probably faulty one of the candles or there is breakdown in high voltage wire. Also check whether the coil is connected correctly (on individual systems it is easy to confuse the connectors).

There is a spark when it's cold, but it disappears when it's hot. Why?

Typical problem for Bluebird with individual coils. Reason - cracks in coil insulation, which appear when heated. Replace the coils as a set.

Could the lack of spark be due to a faulty alternator?

Indirectly - yes. If the generator does not charge, the battery is discharged and there is not enough voltage for the coils to operate normally. Check the voltage at the terminals with the engine running - there should be 13.8–14.4 V.

What is the service life of the ignition coils on a Nissan Bluebird?

Average service life of original coils - 100–150 thousand km. On turbo engines (SR20DET) resource below - 60–80 thousand km due to increased loads. After replacement, it is recommended to use coils Hitachi or Denso.