Anytime your Nissan Sylphy engine sputters when you press on the gas, it’s trying to tell you there is a bigger problem that needs your immediate attention.
It’s a car’s way of crying for help. When your vehicle sputters, it might also mean you are about to run out of fuel, but if the fuel gauge is full, it might mean a serious issue.
An incomplete combustion process will cause your car engine to sputter. A blocked injector can also cause the car to sputter. While a sputtering engine might not seem like a big deal, it is often a symptom of a more significant issue that will likely not self-correct but rather lead to expensive repairs.
What Does It Mean When My Nissan Sylphy Engine Sputters?
A sputtering Nissan Sylphy engine is an advanced problem that requires professional troubleshooting skills. If you experience this symptom, contact your mechanic as soon as possible and have them check out the problem.
The following are a few reasons that could help you narrow down why your engine is puttering.
Exhaust manifold leak
Your Nissan Sylphy exhaust manifold collects exhaust gases from the engine. A leak in this section can lead to sputtering, which can trigger the check engine light (CEL) and increase engine noises.
You will also experience poor performance. A leaking exhaust manifold will cause hot air to escape, which could melt nearby plastic components. Hazardous exhaust fumes from combustion could also get into the cabin.
Spark plugs
Your spark plugs offer the necessary ignition spark for the air and fuel mixture. However, when spark plugs wear out, they are unable to function as required. This will lead to a lot of unburnt fuel getting into the engine, leading to misfires and engine sputter.
Nissan Sylphy Dirty mass airflow sensor
Your mass airflow sensor is an engine component that measures the amount of air entering the fuel injection system.
This data is sent to the ECU, which provides the proper amount of fuel to the combustion chamber. A faulty or dirty mass airflow sensor will send the wrong information, resulting in a sputtering Nissan Sylphy engine or rough idle.
Nissan Sylphy Faulty fuel injectors
Your fuel injectors spray fuel into each cylinder’s combustion chamber, where the spark plugs ignite the fuel and air mixture.
Your Nissan Sylphy’s fuel injectors have a tiny nozzle that, if clogged, could result in uneven spray patterns, which could lead to too much fuel or too little fuel in the combustion chamber.
This will lead to a misfire. Your mechanic could also check if the filters in the injectors are clogged. Fortunately, these filters are cheaply replaceable.
Failing catalytic converter
If your engine is sputtering, has a rough idle, or you can smell rotten eggs, your catalytic converter is failing. When this happens, your check engine light will likely come on.
A faulty catalytic converter cannot burn off the hydrocarbons in your exhaust system, which means the Sulphur created in the engine is no longer breaking down, leading to a rotten egg smell. The car won’t be able to start when the catalytic converter eventually gets blocked.
What Next If All the Above Fail?
It is important to properly diagnose your vehicle before making a decision to replace parts or repair. A scan tool is the best way to diagnose modern cars.
The error codes presented from your Nissan Sylphy’s computer will tell you what to do next. If you are unsure of the diagnosis, contact a reputable automotive service.
