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Why does your harley run too lean or rich and how do you fix it?
Wiki User
∙ 14y ago
Simple answer: air/fuel mixture is off. Too lean means too little fuel, too rich means too much fuel. Can be adjusted via air/fuel screw on a carb or via a remap on EFI. If you make changes to the air flow, you need to adjust the fuel as well.
Wiki User
∙ 14y ago
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Can a cracked intake cause your car to run hot?
yes it will make bring unmetered oxygen in and the o2 sensors will pick it up and it will run lean (lean=hot) (rich=cool)
What does engine running rich or lean mean?
An engine runs by the combustion of a mixture of oxygen and gasoline. If this mix has too much oxygen, it is said to run lean. When the mixture has too much gasoline in relation to oxygen, it is running rich.
Can a blown intake manifold gasket cause a 1994 Chevy Astro to run rich and foul the plugs?
That would probably cause it to run lean.
Can O2 sensors keep a 1999 suburban from running correctly?
YES it will. It will either run RICH or LEAN. Must repair.
How can you tell a Harley has an exhaust leak?
The engine may backfire excessively. You may also smell a strong exhaust odor in the riding position. In worst cases, it can cause the engine to run lean.
What causes a lean fuel code to appear after 10 minutes on a 1995 Chrysler Town and country with a 3.8 liter engine?
Possibly the coolant temperature sensor. Once it heats up the sensor takes action and if it's malfunctioning it could cause it to run lean....or too rich. Possibly the coolant temperature sensor. Once it heats up the sensor takes action and if it's malfunctioning it could cause it to run lean....or too rich.
Can a bad idle control valve cause a car to run rich?
Not normally. Usually it willl cause a high idle and lean condition. Your car needs more fuel to run rich... i.e. MAF Sensor or O2 sensor causing out of whack Fuel trims.
When your o2 sensor goes out whats does it do?
Check engine light may come on, engine may run poorly(rich or lean), fuel economy may suffer......
How do you know if your carburetor is bad for your 1986 caprice 305?
How does it run? If it is running rich or lean then the carburetor could be the culprit. If it is original from 1986 I would bet it needs a rebuild.
Will the engine start if o2 senor is bad?
yes. your check engine light will be on though. and on an obd1 system it will be a code #13. but it will run lean or rich and have poor gas mileage.
Why will a lean condition cause a catalytic converter to turn red?
The catalytic converter usually has an Oxygen Sensor before and after the converter. The hot exhaust gases of the exhaust heat up a catalystic and the voltage is proportional to Oxygen. By measuring before and after the catalytic converter, you have a sense if the Catalytic converter is working correctly in cleaning up the exhaust. The exhast to be cleaned up correctly requires the PCM to sometimes run Lean fuel mixture, to clean up NOx, and sometimes Rich mixture to clean up HC (Hydrocarbons). So PCM cycles the fuel mixture between rich and lean many times in the process of driving, so that to get optimal efficiency of the catalytic converter. However, if you have a vacuum leak, your engine will run LEAN and the PCM will compensate and force it to run rich instead. After a while, by running rich too much, you are throwing unburned fuel into the exhaust pipe, causing Catalytic converter to become Red hot and causing it to fail. So in short, running Rich, not lean, can cause converter failure.
What is the simple subject and complete subject in the sentence Harley led the pack when she ran the 3000 meter run?
Harley, is the answer. I just did the test and the correct answer is Harley.
