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It's when there's a little less fuel for the amount of air than the ideal condition.
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∙ 10y ago
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What does fuel to lean means?
basicly its changing the mixture of fuel/air to improve performance
How do you fix rich air fuel mixture?
install a cold air intake. more air with same amount of fuel being injected will lean out the fuel/air mixture. plus you'll get more power
What way do you turn the air fuel mixture screw on a holly carb for a 1963 dodge dart to make lean?
turn clockwise or inward to lean the mixture.
What does mean lean mixture or rich mixture?
The ideal fuel/air mixture or ratio for most internal combustion gasoline engines is 14.7 to 1. Meaning 14.7 parts air to one part gasoline. Any ratio below this is considered a rich mixture or too much fuel. Any ratio above this is considered a lean mixture or too much air.
What does it mean if the spark plug is dry and white?
Dry is good, but white is bad! It means that the engine is running lean, which will result in the engine running too hot and can cause serious engine damage (even seizure). Below is a guide to reading the spark plug color. Black = Rich. The fuel/air mixture is too rich (too much fuel, not enough air). Tan/Brown = Normal. The fuel/air mixture is correct. White = Lean. The fuel/air mixture is too lean (too much air, not enough fuel).
What does system too lean on a truck?
It means the amount of air in the fuel/air mixture going into the cylinders it too high.
What is diagnostic code 51 in a 1997 Jeep Wrangler?
51** Fuel System Lean A lean air/fuel mixture has been indicated by an abnormally rich correction factor
In case of si engine to have best thermal efficiency the fuel air mixture ratio should be what?
LEAN
What is a fuel oxygen censor?
The O2 sensor is normally in your air intake, or throttle body. It moniters the air flow into the motor that mixes with the fuel. Your CPU controls how much air goes into the engine. A rich fuel mixture robs horsepower while a lean fuel mixture robs reliability. All in all, the Fuel/oxygen sensor measures rich/lean and adjusts the mixturea ccordingly
What can cause lean fuel mixture and?
A vacuum leak can cause a lean burn.
Why will a small engine not run unless it is on choke?
Could be that the air/fuel mixture is set too lean. Needs adjustment.
What does it mean Banks 1 and bank 2 too lean on a 97 F150 V6?
The fuel mixture is wrong in both banks. Improper fuel to air mixture is called lean. Running a code test on the vehicle may show what could be causing the problem.
