Parts for your 2016 Nissan Pulsar-Fuel injectors

2016 Nissan Pulsar fuel injectors: purpose, care, and when to replace

Fuel injectors are absolutely fitted to the 2016 Nissan Pulsar. Nissan’s own factory service manuals for the B17/C12 Pulsar (EC/EM sections) specify electronically controlled fuel injection across the range: the common MR18DE 1.8 petrol uses multi-point fuel injection (port injection), while the SSS’s MR16DDT 1.6 DIG-T runs high-pressure direct injection. In some markets, a 1.5 dCi diesel was offered with common-rail injectors. All of these rely on injectors to meter and atomise fuel precisely.

On the MR18DE, the injectors spray petrol into the intake ports, where it mixes with air before entering the cylinders. On the MR16DDT DIG-T, injectors deliver a finely metered spray straight into the combustion chamber at high pressure. The engine control module (ECM) constantly adjusts pulse width and timing based on sensor data to optimise performance, economy, and emissions. These functions and layouts are documented in Nissan technical literature for the MR18DE and MR16DDT engines.

Keeping the Pulsar’s injectors healthy is largely about clean fuel, correct diagnostics, and proper handling during any removal. They aren’t a routine replacement item, but age, fuel quality, or contamination can affect spray patterns and flow.

• Common signs of injector issues: rough idle, hard starts, poor economy, fuel odour, black exhaust soot, misfire/lean codes (e.g., P030x, P0171), or fuel trim numbers drifting high.
• Good practice: use quality petrol (Nissan specifies the minimum octane