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A vacuum leak can cause a lean burn.

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Q: What can cause lean fuel mixture and?
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Related questions

Can an over lean fuel mixture can cause hunting and surging?

yes


Can over lean fuel mixture can cause hunting and surging?

yes


What is running lean and running rich?

"Rich" and "lean" refer to the air/fuel mixture. Rich means a higher proportion of fuel than is needed and lean means less. An overly rich mixture can foul plugs, cause sluggish performance and promote carbon buildup in the combustion chambers, as well as decrease fuel economy. An overly lean mixture can cause jerky, hesitant performance, overheating and in extreme cases even melt a piston crown.


What does fuel to lean means?

basicly its changing the mixture of fuel/air to improve performance


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 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 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


What is a lean air fuel mixture?

It's when there's a little less fuel for the amount of air than the ideal condition.


What is the problem of a 98 ford windstar with number three spark plug misfire and bank 1 lean fuel mixture?

you need to change your plugs of change your plug wires reguarding bank 1 lean fuel mixture you will have to change your 02sencer


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 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 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.