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Smart Reasoning:

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Qaagi - Book of Why

Causes

Effects

an intake manifold vacuum leak(passive) caused bya lean mixture

a vacuum leak or bad O2 sensorwould causethe lean mixture

Vacuum leak at intake - manifold gasket for that one runnermay causelean mixtures

An open port ... a giant vacuum leakwill causea lean mixture

There also can be an air leak somewherecausinga lean mixture

there could be an air leak somewherecausinga lean mixture

either an engine vacuum leak or low fuel - pump pressure(passive) caused bya lean mixture

vacuum leak from bad vacuum hoses or intake system gasketscauseslean mixture

If worn excessivly , unmetered air will leakcreatinga lean mixture

either ignition retarded or air leak(scausinglean mixture

if you had that part of engine down ) crankcase air leakcausinglean mixture again

an air leak , which is why you needed the # 50 pilot(passive) caused bya lean mixture

They will leak aircausinga lean mixture

too much air or not enough fuel(passive) can be caused byA lean mixture

reports of intake vacuum leakscould ... causea lean mixture

either low fuel pressure or vacuum / boost leak(passive) caused bylean mixture

This will cause less fuel to be delivered than expectedpossibly causinga lean mixture

a dodgy sensor or air / exhaust leak(passive) could be caused byLean mixture

makes me think that you have an air leak from your intake boot to your carbcreatinga lean mixture

manifold leak's causinga lean mixture

A large air leak at or near the number one oxygen sensorwould also causea lean mixture

Fuel level below 1/2will causea lean mixture

too little fuel(passive) is caused byA lean mixture

Fuel controlcreatesoverly lean mixture

fuel trimscausesa LEAN mixture

add fuelto preventa lean mixture

displacing the fuelcausinga lean mixture

a lean mixture and an exhaust leak upstream of an O2 sensorcan causea lean mixture

any air intake leakwill causea lean mixture

Fuel system blockagescausinglean mixture

that it by - passes the the air flow sensorcausinga lean mixture

tooooo much air(passive) caused bya lean mixture

Dirty Injectors restricts the air- flowcausinga lean mixture

a vaccum leak or a mass air flow sensor issue(passive) is caused bylean mixture

either through a plugged fuel supply or too much air(passive) can be causedThe lean mixture

an air leak has occurred either at the intake gasket or the insulator gasket ( the black fiber block behind the carbcausinga lean mixture

For now do n't worry about the fuel level in the bowl being to lowcausinga lean mixture

the more fuel you 'll needto preventa lean mixture

A faulty fuel pumpcauseda lean mixture

a failing fuel pump(passive) caused bya lean mixture

the higher combustion temperatures(passive) caused bythe higher combustion temperatures

misfire at idlemay causemisfire at idle

misfire 1causingmisfire 1

a misfire in the cylinderswill triggera misfire in the cylinders

misfire 8causingmisfire 8

very high NOx emissionscreatevery high NOx emissions

high NOx jdmjimwill causehigh NOx jdmjim

low voltagecauseslow voltage

a backfire conditioncan createa backfire condition

Intake backfire(passive) is caused byIntake backfire

the engine to backfirecan causethe engine to backfire

a lot of heatcreatea lot of heat

extreme heatcreateextreme heat

High heat(passive) is caused byHigh heat

excessive heat and possible engine damagewill causeexcessive heat and possible engine damage

excess heat in the enginecreateexcess heat in the engine

backfires through the carbcausesbackfires through the carb

misfire at light loadscan causemisfire at light loads

to a ‘ lean misfire ’ in the cylindercould leadto a ‘ lean misfire ’ in the cylinder

performance problems , including misfirecan causeperformance problems , including misfire

mga start and backfire Backfiring(passive) is often caused bymga start and backfire Backfiring

in detonation or pingingresultin detonation or pinging

low CO and HC , but high NOxcreatelow CO and HC , but high NOx

in severe engine damagecould resultin severe engine damage

misfire that results in rich mixturemay causemisfire that results in rich mixture

The P0171 or P0174 misfire code(passive) usually caused byThe P0171 or P0174 misfire code

detonation , loss of power and a hard misfire in the enginewill causedetonation , loss of power and a hard misfire in the engine

the engine to overheat and backfirewill causethe engine to overheat and backfire

a blower - wrecking backfirecan causea blower - wrecking backfire

the cylinder to super heatwill causethe cylinder to super heat

excessive combustion heatcausesexcessive combustion heat

more " popping " but not big BOOMs , lolcausesmore " popping " but not big BOOMs , lol

the result of overheating too(passive) caused bythe result of overheating too

piston overheatingcausingpiston overheating

the vehicle to misfire or stumble for a bitcausingthe vehicle to misfire or stumble for a bit

misfire , particularly under engine loadcould causemisfire , particularly under engine load

the random misfire at highr rpmscan causethe random misfire at highr rpms

Excessive heat in the cylinder of an internal combustion engine(passive) is usually caused byExcessive heat in the cylinder of an internal combustion engine

backfiring and sluggishnesscausesbackfiring and sluggishness

backfiring and missingwill causebackfiring and missing

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Smart Reasoning:

C&E

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