Nissan NV400 M9T678 Injectors

Nissan NV400 M9T678 Overview

The Nissan NV400 with the M9T678 2.0L / 2.3L dCi engine was produced between 2011 and 2016. This vehicle uses Bosch common rail diesel injectors (primary part number 0445110375) operating at fuel pressures up to 2000 bar. The M9T678 engine in the Nissan NV400 produces and of torque. When replacing injectors on the Nissan NV400 M9T678, always use new copper sealing washers and torque to manufacturer specifications. Each injector should be coded to the ECU after fitting.

Compatible Injectors

Common Injector Problems in Nissan NV400

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  Rough idle and engine vibration — Worn injector nozzles cause uneven fuel spray, leading to rough idle at low RPM. Most noticeable when the engine is cold.
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  Excessive exhaust smoke — Black or blue-grey smoke on acceleration indicates poor fuel atomisation. This is often caused by carbon buildup on the injector nozzle tip.
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  Poor fuel economy — A worn or leaking injector delivers incorrect fuel quantities, reducing efficiency by 10–20% in severe cases.
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  Engine misfire under load — Intermittent misfires during acceleration suggest one or more injectors are failing to deliver the correct fuel pressure.
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  Difficult cold starting — Degraded injector nozzles struggle to atomise fuel at lower cranking pressures, causing extended crank times in cold weather.

Other Engine Codes for Nissan NV400

Other M9T678 Vehicles

Related Pages

Siemens VDO / Continental Renault / Nissan / Vauxhall 2.3 dCi (M9T) — browse compatible engines, vehicles, and injectors