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hi guys welcome to Mechanical
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boost today in this video we are going
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to discuss the po30 engine code causes
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it the P30 trouble code is a diagnostic
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trouble code that indicates a random or
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multiple misfire in the
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engine in order to find out which
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cylinder is misfiring you need to check
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all the cylinders and locate the damage
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code one worn or fou spark
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plugs the main function of the spark
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plug is to properly produce the Sparks
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to ignite the air fuel
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mixture over time spark plugs can wear
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out or become fouled with carbon
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deposits a bad spark plug doesn't
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Sparks this can lead to inefficient
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coils ignition coils are responsible for
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generating high voltage
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Sparks if one or more ignition coils
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fail it can disturb the proper
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combustion of the air fuel mixture and
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misfires three ignition control module
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failure the ignition control module
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controls the timing and strength of the
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if it becomes faulty misfires can
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occur four clogged or dirty fuel
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injectors fuel injectors spray fuel into
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chamber if they become clogged or dirty
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the fuel air mixture may not be correct
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misfires five fuel pump
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issues a fuel Fu pump is used to convey
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the required quantity of fuel from the
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tank to the engine at the necessary
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pressure an issue with the fuel pump can
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lead to insufficient fuel supply
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combustion six vacuum
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leaks vacuum leaks in the intake
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manifold or vacuum hoses can allow
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unmetered air to enter the
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engine this unmetered air disrupts the
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air fuel mixture and leads to engine
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seven dirty or malfunctioning MAF
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sensor the MAF sensor measures the
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amount of air entering the
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engine a bad MAF sensor can lead to
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improper fuel delivery leading to poor
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combustion of air fuel
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mixture eight exhaust system
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leaks a leak in the exhaust system can
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introduce oxygen into the exhaust stream
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this affects the air fuel mixture and
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misfire nine EGR system
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problems the EGR system of your vehicle
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recirculates exhaust gases to reduce
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emissions a faulty EGR valve or related
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components may affect the air fuel ratio
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leading to misfires in the P30
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code 10 bad oxygen sensor
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the O2 sensors monitor the oxygen
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content in the exhaust
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gases a faulty O2 sensor can result in
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incorrect air fuel mixture adjustments
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misfires 11 clogged throttle
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body the throttle body is a component of
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your engine's air intake system that
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controls the amount of air entering the
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engine if it becomes clogged or dirty it
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can disrupt the air to fuel ratio
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leading to poor combustion and
