A good fuel injector furnishes sufficient amount of fuel to the engine for ideal combustion. It is a spray nozzle that atomizes the pressurized fuel in combustion chamber.
Failed fuel injector alters the amount of fuel supplied to engine. It is unsafe to drive in this condition as it accelerates improperly. Fuel and air mixture ratio disturbed which leads to bad fuel economy.
Failed Fuel Injector
A failed fuel injector can’t manage fuel supply according to ECU. You may notice via many symptoms.
Identifications of Failed Fuel Injector
Following signs will help you to diagnose the issues regarding fuel injectors.
1. Engine Misfiring
Failed fuel injector leads to improper air fuel mixture ratio. It results in bad combustion and engine misfiring.
2. Engine Stalling
Engine may stall after every few moments. It gives a jerky ride.
3. Failed Fuel Injector: Rough Idling
Fuel Injector consists of nozzle. Due to bad fuel quality this nozzle clogged with debris. It prevents proper spray of fuel which leads to rough idling. You may also notice different noises than normal engine sound.
4. Power Loss
The engine power become less as one or more cylinders don’t get enough fuel supply.
5. Fuel Smell in Cabin
Fuel rails and injectors have O-ring in between. Sometimes this O-ring failed and fuel leak occurs. It creates fuel smell.
6. Excessive Fuel Consumption
A failed fuel injector is unable to calculate right amount of fuel to spray. The bad fuel economy of your car is obvious sign of bad fuel injector
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7. Filthy Exhaust Emissions
A faulty fuel injector may results in excessive or restricted fuel supply. The exhaust stroke of engine expells filthy gasses. The failed fuel injector increases these unclean emissions. Sometimes your car exhaust may blocked or catalytic converter can be broken. It points toward a bad fuel injector.
8. Fluttering RPM: Sign of Failed Fuel Injector
Improper fuel spray in engine cylinders lead to improper combustion. This partial combustion delivers varied power to main shaft. The disturbed engine cycle fluctuates RPM needle.
9. Trouble Starting
Engine takes long time to start with restricted fuel supply. Its not a hidden secret that proper combustion needs proper air to fuel ratio.
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10. Unusual Throttle Valve Replacement
Throttle valves and bodies are designed to manage a specific amount of fuel. A failed fuel injector sprays excessive fuel. The impurities in fuel accumulated at many points on the way which leads to throttle valve replacement. If this issue is unusual, it directs toward a bad fuel injector.
