P0350 on Nissan
Ignition Coil Primary/Secondary Circuit Malfunction
P0350 on Nissan vehicles indicates ignition coil primary/secondary circuit malfunction. Au7o has documented this code across 1 Nissan model — most commonly on 300ZX. This is a generic code indicating the engine computer detected a fault in an ignition coil's primary or secondary circuit. The computer monitors the coil control circuits that fire the spark plugs; when the expected electrical activity is missing or abnormal, this code sets. Because it does not always specify which coil, related cylinder-specific codes may also be present. It typically causes misfires, rough running, hesitation, hard starting, and reduced power. Typical repair costs on Nissan range from $250 to $700, depending on the specific model and root cause.
Common Causes of P0350
- •Faulty ignition coil or coil pack
- •Wiring or connector fault in the coil circuit
- •Open or shorted coil primary/secondary winding
- •Faulty spark plug or plug wire
- •Poor ground or power supply to the coil
- •Damaged PCM ignition driver circuit
- •Corrosion or moisture in coil connectors
P0350 on Nissan by Model
Nissan 300ZX(1 issue)
- Power Transistor Unit (PTU) Failure Causing Stalling and No-Start1990-1996
The Z32's external ignition power transistor unit (igniter), mounted in the hot engine bay, degrades internally with age and heat — early 'Series 1' units have failing solder joints and internals that act up as the unit heat-soaks. A failing PTU causes intermittent rough idle, sudden stalling while driving (often only once the engine is hot), or a crank-no-start that resolves after the unit cools, and the unsealed connector corrodes and produces the same symptoms. Because the car can cut out without warning in traffic, owners treat a suspect PTU and its connector as a priority fix; NHTSA complaints for the 1990 car include hot-weather stalling that clears when the car cools (ODI 856214).
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View P0350 across all makes →Frequently Asked Questions
What does P0350 mean on Nissan?▼
P0350 stands for "Ignition Coil Primary/Secondary Circuit Malfunction." This is a generic code indicating the engine computer detected a fault in an ignition coil's primary or secondary circuit. The computer monitors the coil control circuits that fire the spark plugs; when the expected electrical activity is missing or abnormal, this code sets. Because it does not always specify which coil, related cylinder-specific codes may also be present. It typically causes misfires, rough running, hesitation, hard starting, and reduced power. On Nissan specifically, this code is documented across 1 model.
What causes P0350 on Nissan vehicles?▼
Common causes on Nissan: Faulty ignition coil or coil pack, Wiring or connector fault in the coil circuit, Open or shorted coil primary/secondary winding, Faulty spark plug or plug wire, Poor ground or power supply to the coil. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0350 on a Nissan?▼
Repair costs on Nissan range from $250 to $700, depending on the specific model and root cause.
Which Nissan models have P0350 documented?▼
Au7o has documented P0350 on 1 Nissan model: 300ZX.