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Qaagi - Book of Why

Causes

Effects

that for a given power output , the throttle plate must be opened furtherresultingin increased inlet manifold pressure

increased engine load(passive) is caused byAn increase in manifold pressure

by hose , or any other , leakage(passive) caused bylow inlet manifold pressure

a cylinder fail in engine 2causedthe high manifold pressure

a cylinder ... engine 2causedthe high manifold pressure

by the more open throttle setting(passive) caused bythe higher intake pressure

the enginecausinghigher manifold pressure

it 's blocked air through the induction tubecausinglower manifold pressure

the exhaust and/or intake valves not closecompletely ... resultingin high manifold pressure

the throttle positionresultsin low intake - manifold pressure

the less backpressureleadingto less intake manifold pressure

The turbocharger 80 increases airflow into the intake manifold 24to causean increase in intake manifold pressure

blocked air through the induction tubecausinglower manifold pressure

the induction tubecausinglower manifold pressure

> installationcausinga drop in manifold pressure

installation ... >causinga drop in manifold pressure

installationcausinga drop in manifold pressure

> installation ... , butcausinga drop in manifold pressure

When you open the throttlecausinglow manifold pressure

a timing chain that is one link off(passive) can also be caused byVery low manifold pressure

Cam problemscan resultin low manifold pressure

by turbo - charger over - boost(passive) typically caused byExcessive manifold pressure

that conditionresultsfrom continuous excessive intake manifold pressure

by the position of the throttle(passive) is influenced bythe intake manifold pressure

any excessive turbine spinningcan resultin troublesome manifold pressure

the fuel pressureis ... setto the intake manifold pressure

by higher water concentration(passive) caused byintake manifold pressure

higher water concentration(passive) caused byintake manifold pressure

by the restriction of the turbo(passive) caused bymanifold pressure

the throttleinfluencesmanifold pressure

the throttlesetting( manifold pressure

by the driver opening the throttle(passive) caused bymanifold pressure

by changing prop load(passive) caused bymanifold pressure

the cleaning of the combustion chambersetmanifold pressure

by a sudden pop off(passive) caused bymanifold pressure

As the intake valve opens , the air flows into the cylindercausingmanifold pressure to drop

the cylindercausingmanifold pressure to drop

temperature may be too lowcausingincreased pressure in the manifold

Processing temperature may be too lowcausingincreased pressure in the manifold

of 319 sand - cast aluminium(passive) is composedThe upper intake manifold

detonationdoes ... can causedetonation

lots of maintenancecausedlots of maintenance

from changes in engine load and speedresultfrom changes in engine load and speed

from changes in engine load and speedresultsfrom changes in engine load and speed

the valves to floatcan causethe valves to float

as wellcould contributeas well

the failurecausesthe failure

more aircausesmore air

engine damagewill very quickly causeengine damage

in engine damagewill resultin engine damage

pre -setpre -

in a hard brake pedal in a vacuum brake assist systemwill resultin a hard brake pedal in a vacuum brake assist system

in a hard brake pedalwill resultin a hard brake pedal

with low RPMsettingwith low RPM

to a reduction in the charge cycle workleadsto a reduction in the charge cycle work

slow combustioncausesslow combustion

detonationdoes ... causedetonation

the waste gate to fully closecausesthe waste gate to fully close

in greater prewould resultin greater pre

in greater pre andwould resultin greater pre and

A problem with the standard PCV is(passive) was ... designedA problem with the standard PCV is

in lower power ... even at 3,450 rpmresultedin lower power ... even at 3,450 rpm

any problemscauseany problems

the ( fuel injection ) vehicle 's computer to signal the injectors to add extra fuelcausesthe ( fuel injection ) vehicle 's computer to signal the injectors to add extra fuel

more powerresultsmore power

an over pressure in the carbon canister and the tank(passive) may be caused byan over pressure in the carbon canister and the tank

from engine load ( intake manifold vacuum ) and the RPM changesresultsfrom engine load ( intake manifold vacuum ) and the RPM changes

from engine load ( intake manifold vacuum ) and rpm changesresultfrom engine load ( intake manifold vacuum ) and rpm changes

the increased flow through the motorcausesthe increased flow through the motor

more powerresultsmore power

from engine load and speed changesresultfrom engine load and speed changes

from engine load and speed changesresultsfrom engine load and speed changes

your issueswill causeyour issues

in improved fuel efficiency during the overall transitionresultsin improved fuel efficiency during the overall transition

from the different cylindersoriginatingfrom the different cylinders

from airresultsfrom air

powerto setpower

this failurecausedthis failure

the valve settings to be made as a function of two different intake pressurescausesthe valve settings to be made as a function of two different intake pressures

the emissions devicescausingthe emissions devices

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