Role Of Fuel Injector
Delivers the exact amount of gasoline to
engine
Receives signal from ECU
Gas pump delivers pressurized gasoline to
fuel injectors
Fuel injector opens the valve as
directed by ECU
Fuel Injector sprays the fine gasoline to
intake manifold
What Are The common Fuel Injector Problems ..????
Common Fuel
Injector Problems
Fuel injector does not open
Fuel Injector Leaks
Dirty Fuel
injector
Dirty Fuel Injector
Dirty Fuel Injector The Fuel additive leaves a Residue
The Fuel injector gets clogged by the debris and dirt come from fuel rail or supply line
What Happens To
vehicle ..???
Causes Faulty
windings
Rusted fuel injector
What Happens To vehicle ..???
Fuel injector does not close
Causes
Fuel additives
Fuel Injector Leaks
Causes
Over heating of fuel injector
Sudden cooling down of injector
As a result , The fuel Injector does not function properly
What are the Symptoms for replacing Fuel Injector..???
Symptoms
Turbo Troubles
Heat Soak
Fuel Trims Lack Of Resistance
Restriction
Continued
Symptoms
Balance Test
Failed
Vehicle won’t start
Longer in Crank
Times
Restriction
A 8-10% restriction causes Misfire in fuel injector
Results in draining the fuel more than actual requirement
Turbo Troubles
In turbo-charged engines, engine damaging detonation happens due to fuel injector
The detonation process
Engine needs fuel when it is under boost
Heat Soak In Engine
Heat Soak In Engine
As engine is of no cooling airflow or fuel flow for cleaning the nozzle
The Process Fuel residue leaves olefin after engine shuts down
Long and short term Fuel Trims
Causes
Weak fuel pump Plugged fuel filter
What Happens To vehicle ..???
The built up causes less fuel pass to
cylinder
The drops of fuel causes drops in power resistance
Lack Of Resistance
Longer Crank Times
Balance Test Failed
Way of selecting the faulty injector
Ways of balance test
Vehicle Won’t Start With Full Tank
Generally happens due to fuel contamination
Symptoms of fuel
contamination
Hard starting
Stalling
Loss of power
Poor Fuel Economy
Cranking no-start
Website: http://medwayimports.com/
https://www.facebook.com/medwayi
mports
https://twitter.com/MedwayImports