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black exhaust indicates too much fuel or insufficient air in the mixture.
It may be a leaking or sticking injector, a blocked air filter or a sensor may not be functioning properly and the computer is sending more fuel to the engine to compensate.
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∙ 13y ago
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How will a hole in the exhaust cause black smoke?
Its a long shot but... If you have a leak in the exhaust before the oxygen sensors, the sensors will think the engine is running lean. The computer will compensate (from incorrect input data) by increasing fuel delivery, causing the air/fuel mixture to go rich. If the engine runs super rich the exhaust will be black, and very noticable when you accelerate.
The colour of the exhaust gas emitted from a petrol engine that is running very rich is likely to be?
Black
What is the cause of white smoke from the exhaust of a marine diesel engine?
White smoke means water, blue/black smoke means oil, black smoke can also mean the fuel mixture is too rich.
What colour of the exhaust gas emitted from a petrol engine that is running very rich is likely to be?
Black smoke indicates a rich fuel mixture.
How would you know if your cars engine is burning oil?
The presence of black smoke from exhaust when engine is first fired.That sign could also be an engine running too rich.
What is the black smoke from the exhaust mean?
It means that the engine is running too "rich"; that is, there is too much fuel in the air/fuel mixture.
What could be causing a 1995 Chevy Camaro Z28 to puff black smoke from the exhaust when you accelerate?
your runnning rich buddy Black smoke is a sign of an overly rich Air/Fuel mixture. Do not ignore this as it can cause engine damage. Blue smoke is oil burning, and white smoke is coolant in the combustion chamber.
Will a hole in the header cause smoke exhaust?
If you have an O2 sensor, your O2 sensor will not read exhaust gases properly which may cause the ECU to make the engine run rich. Yes. Holes close to the engine in the headers may also cause unburned fuel to ignite in the headers causing backfiring.
How do you correct Black smoke from the exhaust pipe?
It means the engine is burning too "rich" and is burning too much oil Love Dane.
How can you tell if an engine is running lean or rich?
Too rich and you will get black smoke from exhaust. You can also read the spark plugs. way too rich and the engine will bog down or flood out in extreme situations. If it's running too lean, the rpms will get erratic.
What would cause a rough idle and heavy black exhaust in a 1991 Tercel?
Your car is either running way too rich or the rings are worn out and your buring oil. If it is just running rich one of your sensors are out or you need a general tune up. If your rings are worn out then your engine needs rebiult. To tell if your rings are bad your cars smokey exhaust will have a blueish tint to the smoke.
Signs of a bad fuel pressure regulater?
Fuel in oil, engine running rich( black smoke out of exhaust) Fuel pressure to high, Spark plugs black in color. Hard to start.
