Volkswagen Corrado (1993 year). Manual - part 97

 

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Volkswagen Corrado (1993 year). Manual - part 97

 

 

AA - USING THIS SECTION (GENERAL HELP INFORMATION) 

         ENGINE PERFORMANCE
         How To Use This Section

         INTRODUCTION

NOTE:    Because there are so many possible combinations of
         articles for the different manufacturers and models,
         the new hyper-text capabilities built into this product
         DO NOT apply to this article.

         It is the purpose of this repair information system to help
professional automotive technicians maintain top vehicle performance
and correct driveability problems related to today's high tech
vehicles.
         Because of the limited amount of space allowable for the this
product, our titles have been condensed to fit into the menus. An
alphabetical designation has been added to the front of each title to
allow the titles to be displayed in a way that reflects their
respective order of use. References to the titles in some of the
diagnostic flow charts sometimes will not correlate with the titles in
the this product menu. If not, refer to the MENU CROSS-REFERENCE table
below.

MENU CROSS-REFERENCE TABLE

ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

Title                                    Associate Print (Book) Title:

A - ENGINE/VIN I D  ....................................  Introduction
B - EMISSION APPLICATION  .....................  Emission Applications
C - TUNE-UP SPECS  ..............  Service & Adjustment Specifications
C - SPECIFICATIONS  .............  Service & Adjustment Specifications
D - ADJUSTMENTS  .............................  On-Vehicle Adjustments
E - THEORY/OPERATION  ............................  Theory & Operation
F - BASIC TESTING  ......................  Basic Diagnostic Procedures
G - TESTS W/ CODES  ................................  Self-Diagnostics
H - TESTS W/O CODES  ....................  Trouble Shooting - No Codes
I - SYS/COMP TESTS  .....................  Systems & Component Testing
J - PIN VOLTAGE CHARTS  ..........................  Pin Voltage Charts
K - SENSOR RANGE CHARTS  ..............  Sensor Operating Range Charts
L - WIRING DIAGRAMS  ................................  Wiring Diagrams
M - VACUUM DIAGRAMS  ................................  Vacuum Diagrams
N - REMOVE/INSTALL/OHAUL  ..........  Removal, Overhaul & Installation

ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

         Because of this we recommend that you read the rest of these
INTRODUCTION paragraphs to better understand why the information is
presented in this new format.
         The A - ENGINE/VIN I D article will help you identify the
vehicle and its systems. It will also explain the VIN code and in many
cases, show its location.

AA - USING THIS SECTION (GENERAL HELP INFORMATION) 

         A - ENGINE/VIN ID

         This article shows how to identify the model and engine by
its Vehicle Identification Number (VIN). A model coverage chart shows
each model and engine, the fuel system, ignition system and engine
code. The engine serial number locations are also included in this
article.

         B - EMISSION APPLICATION

         These charts identify the emission systems and sub-systems
applicable to each model and engine combination.

         C - TUNE-UP SPECS

         This is a collection of quick-reference type specifications.
This article is helpful when you are familiar with proper adjustment
procedures and only need specifications. Included in this section are:

  *  Battery specifications.
  *  Fluid capacities.

AA - USING THIS SECTION (GENERAL HELP INFORMATION) 

  *  High tension wire resistance.
  *  Spark plug type and gap.
  *  Firing order.
  *  Ignition timing.
  *  Fuel pump performance and injector resistance specifications
  *  Slow and fast idle speed and mixture specifications.
  *  Carbon monoxide (CO) level specifications.
  *  Throttle position sensor/switch specifications.

         C - SPECIFICATIONS

         This is a collection of quick-reference type specifications.
This article is helpful when you are familiar with proper adjustment
procedures and only need specifications. Included in this section are:

  *  Battery specifications.
  *  Fluid capacities.
  *  Replacement intervals.
  *  Belt adjustment.
  *  Engine Compression.
  *  Valve clearance.
  *  Valve Arrangement.
  *  Ignition coil specifications.

  *  High tension wire resistance.
  *  Spark plug type and gap.
  *  Firing order.
  *  Ignition timing.
  *  Fuel pump performance and injector resistance specifications
  *  Slow and fast idle speed and mixture specifications.
  *  Carbon monoxide (CO) level specifications.
  *  Throttle position sensor/switch specifications.

         D - ADJUSTMENTS

         This article contains the information that use to be included
in the TUNE-UP section. Checking and adjusting valves, spark plugs,
spark plug wires, base ignition timing and idle speed are found in
this section. Use this article for routine maintenance. Also, if you
have a driveability problem, ensure all on-vehicle adjustments are
correct before proceeding with any diagnosis.

         E - THEORY/OPERATION

AA - USING THIS SECTION (GENERAL HELP INFORMATION) 

         F - BASIC TESTING

         When diagnosing driveability problems, there are certain
"BASIC DIAGNOSTIC PROCEDURES" which must FIRST be performed. It is
necessary to perform a careful, complete check of basic engine
mechanical and electrical conditions, and verify spark availability
and adequate fuel supply.
         The procedures apply to both computerized and non-
computerized systems. If all systems are okay, go to G - TESTS W/
CODES for vehicles with self-diagnostic systems or H - TESTS W/O CODES
for diagnosis by symptom.

         G - TESTS W/ CODES

         Use this article to retrieve and interpret trouble codes from
the engine computer self-diagnostic system. Once information is
retrieved, diagnostic procedures are given to help pinpoint and repair
computer system/component faults. Necessary steps for clearing trouble
codes are also given. If faults indicated by trouble codes are not
present at time of testing, proceed to TESTS W/O CODES for
intermittent testing procedures.

         H - TESTS W/O CODES

         This article helps trouble shoot driveability problems based
upon available "SYMPTOMS" and "INTERMITTENT TESTING" procedures.
Procedures in this section should lead you to specific component or
system tests which may or may not be computer monitored/controlled.

         I - SYS/COMP TESTS

         In this article, you will find tests for systems and
components related to air induction systems (turbochargers), fuel
control, ignition control, and emissions control systems.

         J - PIN VOLTAGE CHARTS

         PIN VOLTAGE CHARTS are supplied (where available) to speed up
the diagnostic process. By checking pin voltages at the electronic
control unit, it is possible to determine if the control unit is
receiving and transmitting proper voltage signals.

         K - SENSOR RANGE CHARTS

         Use the SENSOR OPERATING RANGE CHARTS to determine if a

 

 

 

 

 

 

 

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