what are fuel injection issues?
154211
As the engine misfires, the engine can quickly overheat and pre-ignite the fuel mixture. A damaged fuel injector will not only causes issues with driving, but the effects will persist even as the engine idles. Instead of a smooth engine idle, it will be rough and irregular when the fuel supply is abrupt.
618422
The symptoms of a stuck-open or incompletely closing fuel injector are quite different than an injector that is completely dead or partially clogged. In this case, there may be an odor of unburned fuel in the engine compartment, coming through the vents, or even out of the tail pipe.
701804
Look at the fuel flow from the injectors with the engine running, shuld look like a fine cone shaped mist, a bad injector can stick open and flow a heavy stream of fuel. ... An incorrect fuel pump (hi pressure vs. low) could cause rich running, you should see approx.
676911
['Engine Misfiring and Lacking Power. When an engine misfires, it is a problem with the valve timing. ... ', 'Metal Shavings in the Engine Oil. This is something that will only be noticed when you have an oil change. ... ', 'Engine Failure. ... ', 'Engine Light is Illuminated. ... ', 'Rattling Noise When Idling.']
800467
Leaking fuel injectors are very dangerous in these systems and should be taken care of immediately. Do not drive your vehicle if you have a direct fuel injection system and suspect it of leaking at the O-ring or the injector body.
905115
The cause is often a problem in the idle air control system. The first thing to check is the intake vacuum with a vacuum gauge. ... An EGR valve that is leaking can also act like a vacuum leak and cause a random misfire. The next thing you should check is the fuel pressure with a gauge.
138683
What Happens If You Don't Replace the Fuel Filter. ... If there are problems within the fuel system, such as a blocked fuel filter, the vehicle may experience: Misfiring – Misfiring occurs when the engine misses one of the steps in the combustion process. Misfiring causes the engine to run rough, jerk, or buck.
971651
['P0171 System Too Lean (Bank 1) ... ', 'P0174 System Too Lean (Bank 2) ... ', 'P0300 Random/Multiple Cylinder Misfire Detected. ... ', 'P0301 Cylinder 1 Misfire Detected. ... ', 'P0340 Camshaft Position Sensor Circuit Malfunction. ... ', 'P0401 Exhaust Gas Recirculation Flow Insufficient Detected.']
1232701
['Trouble Starting the Engine. The most common sign of a clogged fuel filter is trouble starting the car, since it depletes the oil supply going to the engine. ... ', 'Issues Accelerating. ... ', 'Frequent Idling and Sputtering. ... ', 'Strong Odors. ... ', 'Engine Misfires/Low Performance. ... ', 'When to Replace the Fuel Filter.']
571660
As the ignition coils are among the ignition system's most vital components, an issue can cause spark to be compromised, which can quickly lead to performance issues. Faulty coils may cause the vehicle to experience misfires, a rough idle, a loss in power and acceleration, and a reduction in gas mileage.
1219581
['Driving Style and Circumstances. One of the most common causes of poor fuel economy is the way you drive and the trips that you make. ... ', 'Bad Oxygen Sensors. ... ', 'Faulty Thermostat. ... ', 'Faulty Fuel Injectors. ... ', 'Engine Misfire. ... ', 'Faulty Spark Plugs. ... ', 'Clogged Air Filter. ... ', 'Wrong Oil Viscosity.']
339249
['Increased difficulty starting the car. ... ', 'Occasional or frequent stalling. ... ', 'Knocking sounds or rough idling/acceleration. ... ', 'Bad gas mileage. ... ', "Pay attention to manufacturer's recommendations."]
420392
An idling engine can leave fuel residue that can cause oil contamination and damage engine components such as cylinders and piston rings. Engine idling can also make your spark plugs become dirtier more quickly, which in turn can increase your fuel consumption by 4-5%.
872438
A clogged or malfunctioning EGR valve can disrupt the vehicle's air-fuel ratio, which can cause engine performance issues such as a reduction in power and fuel efficiency. The vehicle may also stall or hesitate while accelerating.
73852
['Faulty engine. ... ', 'Poor engine oil. ... ', 'Poor quality fuels. ... ', 'Air conditioning. ... ', 'Worn out tyres. ... ', 'Poor maintenance and short distance. ... ', 'Wrong gears. ... ', 'Wornout clutch and warming the car in the morning.']
374618
Engine misfires and decrease in power, acceleration, and fuel efficiency. ... A faulty fuel injector can cause the vehicle to experience misfires, a loss in power and acceleration, a reduction in fuel efficiency, and in severe cases can cause stalling or prevent the engine from running at all.
1465286
A bad fuel injector or dirty/old fuel filter can drastically affect the flow of fuel into the engine. A fuel system problem is one of the most common causes of poor gas mileage. The more you run your A/C, the lower gas mileage you will get.