FUEL INJECTION
TABLE OF CONTENTS
page page
ACCELERATOR PEDAL POSITION SENSOR
DESCRIPTION .........................17
BOOST PRESSURE SENSOR
DESCRIPTION .........................17
OPERATION ...........................18
DIAGNOSIS AND TESTING - BOOST
PRESSURE SENSOR ..................18
REMOVAL .............................18
INSTALLATION .........................18
CAMSHAFT POSITION SENSOR
DESCRIPTION .........................19
OPERATION ...........................19
REMOVAL .............................19
INSTALLATION .........................19
CRANKSHAFT POSITION SENSOR
DESCRIPTION .........................20
OPERATION ...........................20
REMOVAL .............................20
INSTALLATION .........................20
FUEL INJECTOR
DESCRIPTION
FUEL INJECTOR ......................20
OPERATION ...........................20
STANDARD PROCEDURE
STANDARD PROCEDURE - INJECTOR
CLASSIFICATION .....................22
STANDARD PROCEDURE - CLEANING
FUEL INJECTORS .....................22
REMOVAL .............................23
INSTALLATION .........................23
FUEL PRESSURE SENSOR
DESCRIPTION
DESCRIPTION ........................25
DESCRIPTION ........................25
OPERATION
OPERATION .........................25
OPERATION .........................25
REMOVAL
REMOVAL ...........................26
REMOVAL ...........................26
INSTALLATION
INSTALLATION .......................26
INSTALLATION .......................27
FUEL PRESSURE SOLENOID
DESCRIPTION .........................27
OPERATION ...........................27
REMOVAL .............................28
INSTALLATION .........................28
FUEL TEMPERATURE SENSOR
DESCRIPTION .........................29
OPERATION ...........................29
REMOVAL .............................29
INSTALLATION .........................29
INLET AIR TEMPERATURE SENSOR
DESCRIPTION .........................29
OPERATION ...........................29
REMOVAL .............................30
INSTALLATION .........................30
MANIFOLD AIR FLOW (MAF) SENSOR
DESCRIPTION .........................30
OPERATION ...........................30
REMOVAL .............................31
INSTALLATION .........................31
ACCELERATOR PEDAL
POSITION SENSOR
DESCRIPTION
The accelerator pedal position sensor is located on
the accelerator pedal assembly. The driver supplies
the torque requirements for the engine by operating
the accelerator pedal in accordance with the desired
speed or acceleration. The pedal sensor converts the
mechanical operation of the pedal into an electrical
signal and sends the information to the ECM. The
ECM adjusts the quantity of the fuel that is injected
into the engine (Fig. 1).
The accelerator pedal position sensor is serviced as
an assembly with the accelerator assembly.
BOOST PRESSURE SENSOR
DESCRIPTION
The boost pressure sensor is mounted to the charge
air pipe (Fig. 2). The sensor allows the ECM to mon-
itor intake air down stream of the turbocharger.
VA FUEL INJECTION 14 - 17
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