yes
yes
"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.
basicly its changing the mixture of fuel/air to improve performance
turn clockwise or inward to lean the mixture.
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).
51** Fuel System Lean A lean air/fuel mixture has been indicated by an abnormally rich correction factor
It's when there's a little less fuel for the amount of air than the ideal condition.
you need to change your plugs of change your plug wires reguarding bank 1 lean fuel mixture you will have to change your 02sencer
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
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.
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.