N - Remove/Install/Overhaul - Vr6 Article Text
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Gatis IvbulisN - Remove/Install/Overhaul - Vr6 Article Text
Uploaded by
Gatis IvbulisN - REMOVE/INSTALL/OVERHAUL - VR6
Article Text
1993 Volkswagen Passat
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 10:19PM
ARTICLE BEGINNING
1993 ENGINE PERFORMANCE
Removal, Overhaul & Installation
Passat GLX
CAUTION: When battery is disconnected, vehicle computer and memory
systems may lose memory data. Driveability problems may
exist until computer systems have completed a relearn
cycle. See the COMPUTER RELEARN PROCEDURES article in
GENERAL INFORMATION before disconnecting battery.
INTRODUCTION
Removal, overhaul and installation procedures are covered in
this article. If component removal and installation is primarily an
unbolt and bolt-on procedure, only a torque specification may be
furnished.
CAUTION: When disconnecting battery, obtain and record radio
anti-theft code. If wrong code is entered into radio after
power is restored, radio will become inoperable.
IGNITION SYSTEM
NOTE: Passat GLX ignition system removal and installation
information not available from manufacturer. These vehicles
are equipped with a distributorless ignition system.
FUEL SYSTEM
FUEL SYSTEM PRESSURE RELEASE
To relieve fuel system pressure, remove fuel pump fuse (No.
5, 13 or 18) or fuel pump relay to deactivate fuel pump. Place a clean
shop rag around fuel line fitting and slowly loosen fitting.
WARNING: Fuel system pressure release procedure is not available
from manufacturer. Fuel will discharge when disconnecting
fuel system components. Disconnect ignition coil output
stage wiring harness to deactivate ignition. DO NOT smoke
or work near heaters or other fire hazards. Keep a fire
extinguisher handy.
FUEL PUMP
Removal & Installation (Passat GLX)
1) Obtain and record radio anti-theft code. Disconnect
negative battery cable. Remove luggage compartment floor covering and
fuel pump access cover. Disconnect wiring harness and fuel lines from
N - REMOVE/INSTALL/OVERHAUL - VR6
Article Text (p. 2)
1993 Volkswagen Passat
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 10:19PM
fuel pump.
2) Using Wrench (3217), loosen fuel pump screw cap. Remove
flange and sealing ring from fuel tank opening. Loosen fuel pump by
twisting it to left. Remove fuel pump from fuel tank.
3) When installing fuel pump, ensure that fuel gauge sending
unit is not bent. Sending unit must be installed with a frontal angle
of 5 degrees (70-75 degrees on Passat GLX sedan). Align mark on flange
with fuel tank. To complete installation, reverse removal procedure.
FUEL RAIL & INJECTORS
Removal & Installation (Passat GLX)
1) Remove ignition wires. Remove hose from mass airflow
sensor. Disconnect hose to fuel evaporative (frequency) solenoid valve
at throttle body.
2) Disconnect throttle position sensor and idle air control
valve. Disconnect accelerator cable from throttle body. Disconnect and
plug coolant hoses at throttle body.
3) Disconnect hose from air intake heated tube. Detach fuel
lines at cylinder head cover and remove from fuel rail. Disconnect
vacuum hose from fuel pressure regulator. Remove upper intake
manifold.
4) With upper intake manifold removed, disconnect wiring
harness from fuel injector(s). Pry off retaining clip(s) from
injector(s). To install injectors, lubricate "O" rings with fuel. To
complete installation, reverse removal procedure.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS (PASSAT GLX)
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Application Ft. Lbs. (N.m)
EGR Temperature Sensor ...................... 15 (20)
Knock Sensors ............................... 18 (25)
Oxygen Sensor ............................... 37 (50)
Throttle Body Bolts ......................... 18 (25)
Upper Intake Manifold Bolts ................. 18 (25)
INCH Lbs. (N.m)
FUEL RAIL BOLTS ............................. 84 (10)
Intake Air Temperature Sensor ............... 84 (10)
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END OF ARTICLE