1993 VOLKSWAGEN CORRADO oil pressure

F - BASIC TESTING
Article Text (p. 6)
1993 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 09:10PM
EuroVan ................ 36 (2.5) .................. 43 (3.0)
Passat GL ........ (2) 87-94 (6.1-6.6) ... (3) 87-94 (6.1-6.6)
Passat GLX ............. 50 (3.5) .................. 58 (4.0)
(1) - With vacuum hose disconnected from fuel pressure regulator.
(2) - Approximately 4.3-7.2 psi (0.3-0.5 kg/cmý) below system
pressure, with differential pressure regulator disconnected.
(3) - Approximately 18.5-23.0 psi (1.3-1.6 kg/cm
ý) below system
pressure, with differential pressure regulator connected.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ IGNITION CHECKS
NOTE: Ignition checks are divided according to fuel system.
SPARK TEST
1) Using an ohmmeter, check resistance of each spark plug
wire. See HIGH TENSION WIRE RESISTANCE table. Check for a strong Blue
spark at coil wire and at each spark plug wire by holding wire
terminal 5/16" from ground while cranking engine.
2) Disconnect and inspect all related ignition system
connectors and harness. Clean or repair if necessary. If related
connectors and harness are okay, remove negative battery cable.
Disconnect secondary and primary leads from ignition coil.
3) Using ohmmeter, check primary resistance between primary
terminals of coil. Check secondary resistance between coil secondary
terminal and primary positive terminal. Replace coil if readings are
not within specifications. See IGNITION COIL RESISTANCE table.
HIGH TENSION WIRE RESISTANCE TABLE
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄApplication Ohms
Coil Wire Only .................................. (1)
Coil Wire With Connector .................. 1600-2400
Spark Plug Wire Connector ................. 4000-6000
Suppressor (2) ............................. 600-1400
(1) - Check for continuity.
(2) - Suppressor is located between ignition coil wire
and distributor cap.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ IGNITION COIL
IGNITION COIL RESISTANCE - Ohms @ 68
øF (20øC)
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄApplication Primary Secondary
Cabriolet
Digifant I ........... 0.5-0.7 ......... 3000-4000

H - TESTS W/O CODES
Article Text (p. 3)
1993 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 09:11PM
NOTE: Symptoms listed are for CIS-E Motronic system. When working
on Digifant and Motronic systems, use symptoms listed only
as a diagnostic guide. A list of specific symptoms for
Digifant and Motronic systems is not available from
manufacturer.
ENGINE DOES NOT START OR IS DIFFICULT TO START WHEN COLD
* Check for insufficient fuel in tank.
* Check fuel pump relay and fuel pump.
* Check fuel system for leaks.
* Check auxiliary air intake system.
* Check fuel system after-start, acceleration enrichment and
warm-up circuits.
* Check cold-start valve.
* Check airflow sensor lever adjustment and control plunger.
* Check sensor plate rest position and idle circuit.
* Check fuel system differential and residual pressures.
* Check fuel injection volume.
* Check engine coolant temperature sensor.
* Check ignition timing, spark plugs, distributor, secondary
ignition wiring and coil.
* Check Hall Effect sensor.
* Check ignition coil power output stage.
ENGINE DOES NOT START OR IS DIFFICULT TO START WHEN WARM
* Check radiator cooling fan after-run circuit.
* Check fuel pump check valve.
* Check fuel evaporative frequency solenoid(s).
* Check fuel system for leaks.
* Check auxiliary air intake system.
* Check idle speed.
* Check fuel system after-start, acceleration enrichment and
warm-up circuits.
* Check cold-start valve.
* Check injector fuel pressure and volume.
* Check sensor plate rest position and idle circuit.
* Check sealing ring under control plunger.
* Check fuel system differential and residual pressures.
* Check engine coolant temperature sensor.
* Check ignition timing, spark plugs, distributor, secondary
ignition wiring and coil.
UNEVEN IDLE OR NO IDLE WITH COLD ENGINE OR DURING WARM-UP
* Check fuel evaporative frequency solenoid(s).
* Check fuel system for leaks.
* Check auxiliary air intake system.
* Check idle speed.
* Check oxygen sensor control circuit.

H - TESTS W/O CODES
Article Text (p. 4)
1993 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 09:11PM
* Check cold-start valve.
* Check injector fuel pressure and volume.
* Check throttle potentiometer.
* Check fuel system differential and residual pressures.
* Check idle switch.
* Check engine coolant temperature sensor.
* Check exhaust system.
* Check ignition timing and spark plugs.
ENGINE STARTS BUT STALLS
* Check fuel pump relay and fuel pump.
* Check auxiliary air intake system.
* Check idle speed.
* Check fuel system after-start, acceleration enrichment and
warm-up circuits.
* Check airflow sensor lever adjustment and control plunger.
* Check sensor plate rest position and idle circuit.
* Check fuel system differential and residual pressures.
* Check idle switch.
* Check engine coolant temperature sensor.
IDLE SPEED EXCEEDS SPECIFICATION
* Check throttle cable adjustment.
* Check fuel evaporative frequency solenoid(s).
* Check auxiliary air intake system.
* Check idle speed.
* Check throttle potentiometer.
* Check idle switch.
* Check engine coolant temperature sensor.
* Check throttle body basic adjustment.
* Check ignition timing.
POOR ACCELERATION WITH COLD ENGINE OR DURING WARM-UP
* Check fuel pump.
* Check auxiliary air intake system.
* Check oxygen sensor control circuit.
* Check fuel system after-start, acceleration enrichment and
warm-up circuits.
* Check airflow sensor lever adjustment and control plunger.
* Check throttle potentiometer.
* Check fuel system differential and residual pressures.
* Check injector fuel pressure and volume.
* Check idle switch.
* Check engine coolant temperature sensor.
* Check throttle body basic adjustment.
* Check exhaust system.
* Check ignition timing, spark plugs, distributor, secondary
ignition wiring and coil.

H - TESTS W/O CODES
Article Text (p. 5)
1993 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 09:11PM
ENGINE STALLS WHILE DRIVING
* Check fuel pump.
* Check auxiliary air intake system.
* Check injector fuel pressure and volume.
* Check idle and full throttle switches.
* Check intake air preheating system.
* Check ignition timing, spark plugs, distributor, secondary
ignition wiring and coil.
POOR PERFORMANCE
* Check fuel pump.
* Check throttle cable adjustment.
* Check auxiliary air intake system.
* Check airflow sensor lever adjustment and control plunger.
* Check throttle potentiometer.
* Check fuel system differential and residual pressures.
* Check injector fuel pressure and volume.
* Check full throttle switch.
* Check mass airflow sensor (if equipped).
* Check intake air preheating system.
* Check catalytic converter.
* Check ignition timing.
ENGINE RUN-ON (DIESELING)
* Check fuel evaporative frequency solenoid(s).
* Check fuel system for leaks.
* Check cold-start valve.
* Check injector fuel pressure and volume.
* Check airflow sensor lever adjustment and control plunger.
HIGH FUEL CONSUMPTION
* Check fuel system for leaks.
* Check oxygen sensor control circuit.
* Check cold-start valve.
* Check injector fuel pressure and volume.
* Check airflow sensor lever adjustment and control plunger.
* Check throttle potentiometer.
* Check injector fuel pressure and volume.
* Check full throttle switch.
* Check mass airflow sensor (if equipped).
* Check intake air preheating system.
* Check exhaust system for leaks (between cylinder and
oxygen (O2) sensor).
* Check ignition timing.
ENGINE KNOCK
* Check knock sensors (if equipped).

H - TESTS W/O CODES
Article Text (p. 6)
1993 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 09:11PM
* Check full throttle switch.
* Check ignition timing.
ENGINE RUNS UNEVENLY OVER ENTIRE SPEED RANGE
* Check auxiliary air intake system.
* Check injector fuel pressure and volume.
* Check ignition timing, spark plugs, distributor, secondary
ignition wiring and coil.
INTERMITTENTS
INTERMITTENT PROBLEM DIAGNOSIS
Intermittent fault testing requires duplicating circuit or
component failure to identify the problem. These procedures may lead
to the computer setting a fault code (on some systems) which may help
in diagnosis.
If problem vehicle does not produce fault codes, monitor
voltage or resistance values using a DVOM while attempting to
reproduce conditions causing intermittent fault. A status change on
DVOM indicates a fault has been located.
Use a DVOM to pinpoint faults. When monitoring voltage,
ensure ignition switch is in ON position or engine is running. Ensure
ignition switch is in OFF position or negative battery cable is
disconnected when monitoring circuit resistance. Status changes on
DVOM during test procedures indicate area of fault.
TEST PROCEDURES
Intermittent Simulation
To reproduce the conditions creating an intermittent fault,
use the following methods:
* Lightly vibrate component.
* Heat component.
* Wiggle or bend wiring harness.
* Spray component with water.
* Remove/apply vacuum source.
Monitor circuit/component voltage or resistance while
simulating intermittent. If engine is running, monitor for self-
diagnostic codes. Use the test results to identify a faulty component
or circuit. For system or component testing refer to the appropriate
I - SYS/COMP TESTS article in this section. See the menu below:
* For Cabriolet, see: I - SYSTEM/COMPONENT TESTS
* For Corrado SLC, see: I - SYSTEM/COMPONENT TESTS
* For EuroVan, see: I - SYSTEM/COMPONENT TESTS
* For Fox, see: I - SYSTEM/COMPONENT TESTS
* For Golf, GTI, Jetta, see: I - SYSTEM/COMPONENT TESTS
* For Passat GL 2.0L 4-Cylinder, see:

HOW TO USE SYSTEM WIRING DIAGRAMS
Article Text (p. 7)
1993 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 09:11PM
Instrument Cluster ........................ Analog Instrument Panels
Intake Air Temperature (IAT) Sensor ............. Engine Performance
Interior Lights ....................... Illumination/Interior Lights
Interlock Switch .......................................... Starters
Junction Block .................................. Power Distribution
Keyless Entry Receiver ........................ Remote Keyless Entry
Key Reminder Switch ....................................... Starters
Knock Sensor .................................... Engine Performance
Lamp Control Module ................................ Exterior Lights
License Plate Lamp ................................. Exterior Lights
Lighting Control Module ................... Lighting Control Modules
Anti-Theft System
Daytime Running Lights
Headlight Systems
Lower Relay .................................. Power Convertible Top
Malfunction Indicator Light (MIL) ............... Engine Performance
Instrument Panels
Manifold Absolute Pressure (MAP) Sensor ......... Engine Performance
Mass Airflow (MAF) Sensor ....................... Engine Performance
Mega Fuse .................................. Generators & Regulators
Memory Seat/Mirror Module ........................... Memory Systems
Mirror Defogger ............................... Rear Window Defogger
Moon Roof Motor .................................... Power Moon Roof
Moon Roof Relay .................................... Power Moon Roof
Multi-Function Control Module ...................... Warning Systems
Neutral Safety Switch ..................................... Starters
Oil Level Switch ................................ Engine Performance
Oil Pressure Switch/Sending Unit .......... Analog Instrument Panels
Engine Performance
Overhead Console .................................. Overhead Console
Oxygen Sensor(s) (O2S) .......................... Engine Performance
Parking Brake Switch ...................... Analog Instrument Panels
Park Lights ........................................ Exterior Lights
Park/Neutral Position Switch .............................. Starters
Engine Performance
Anti-Theft System
Body Control Module
Perimeter Lighting Control Relay ................... Exterior Lights
Power Amplifier ..................................... Power Antennas
Power Antenna Module ................................ Power Antennas
Power Antenna Motor ................................. Power Antennas
Power Distribution Center ....................... Power Distribution
Generators & Regulators
Starters
Power Door Lock Motors ............................ Power Door Locks
Power Mirror Motors .................................. Power Mirrors
Memory Systems
Power Sliding Door Controller .............. Power Sliding Side Door
Power Seat Motors ...................................... Power Seats
Memory Systems
Power Steering Pressure Switch .................. Engine Performance
Power Top Motor .............................. Power Convertible Top

MAINTENANCE INFORMATION
Article Text (p. 10)
1993 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 09:14PM
SERVICE LABOR TIMES
SERVICE LABOR TIMES TABLE (HOURS)ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ (1)(2) 15,000 (1)(2) 30,000 (60,000)
Application Mile Service Mile Service
Automatic Transmission ..... 1.6 .................. 3.3 (4.2)
Manual Transmission ........ 1.8 .................. 2.7 (3.6)
(1) - Add .2 hr. if equipped with A/C. Add .1 hr. if equipped
with cruise control.
(2) - Add 1.8 hrs. to replace camshaft timing belt (if equipped).
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ LUBRICATION SPECIFICATIONS
LUBRICATION SPECIFICATIONS TABLE
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄApplication Fluid Specifications
Engine Oil (1)
Ambient Temperatures
Greater Than 50
øF (10øC) .............. SAE 20W-50 API SF/CD
14
øF To 50øF (-10øC To +10øC) ......... SAE 10W-40 API SF/CD
Less Than 14
øF (-10ø C) ................ SAE 5W-30 API SF/CD
Brake Fluid ........................ SAE J1703 (DOT 3 Or DOT 4)
Power Steering Fluid ......................... VW Hydraulic Oil
(G 002000) Or Equivalent
Automatic Transmission ........... Dexron-IIE ATF Or Equivalent
Manual Transaxle .......................... SAE 80W API GL-4 Or
SAE 75W-90 (G50 Synthetic Gear Oil)
Final Drive (A/T & M/T)
(Differential) .......... SAE 75W-90 (G50 Synthetic Gear Oil)
Wheel Bearings .................... NLGI Grade 2 Category GC-LB
Drive Shaft U-Joints .............. NLGI Grade 2 Category GC-LB
Steering Linkage (2)(3) ........... NLGI Grade 2 Category GC-LB
Ball Joints (2)(4) ................ NLGI Grade 2 Category GC-LB
Weatherstrip ....................... Dielectric Silicone Grease
(1) - SAE 15W-40 or 20W-40 engine oil is recommended for extreme
conditions or extended highway operation.
(2) - Use low pressure grease gun to prevent seal damage.
(3) - Fill until lubricant squeezes out from the base of seals.
(4) - Fill ball joint until seal starts to swell.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ FLUID CAPACITIES
FLUID CAPACITIES TABLE
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

MAINTENANCE INFORMATION
Article Text (p. 11)
1993 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Wednesday, March 22, 2000 09:14PM
Application Quantity (1)
A/C System R-12 Refrigerant
1990-92 (up to 7/92) ............................. 37-40 Ozs.
A/C System R-134a Refrigerant (2)
1993-94 (from 7/92) ........................... 28.2-31.8 Ozs.
Cooling System
4-Cyl. ...................................... 6.8 Qts. (6.5L)
V6 .......................................... 9.1 Qts. (8.6L)
Engine Oil (3)
4-Cyl. ...................................... 4.3 Qts. (4.0L)
V6 .......................................... 6.3 Qts. (6.0L)
Fuel Tank
4-Cyl. ..................................... 14.5 Gals. (55L)
V6 ......................................... 18.5 Gals. (55L)
Automatic Transmission
Fluid Change ................................ 3.2 Qts. (3.0L)
Overhaul .................................... 5.9 Qts. (5.6L)
Manual Transmission ........................... 2.1 Qts. (2.0L)
Final Drive
Differential (A/T) (4) ....................... 0.8 Qt. (.75L)
(1) - Capacities are recommended or calculated levels. Always use
dipstick (if available) to measure level.
(2) - Use of R-12 in a R134a system will result in SEVERE DAMAGE.
(3) - Includes oil filter change.
(4) - Lifetime fill.ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ WHEEL & TIRE SPECIFICATIONS
Wheel and tire sizes vary according to vehicle and equipment
and can be found on tire information label on each vehicle. Wheel and
tire specifications and tire inflation pressures are listed on a label
found inside fuel tank flap.
NOTE: Snow chains must be used on drive wheels, in pairs only.
WHEEL TIGHTENING
Tighten all wheel lugs to 80 ft. lbs. (110 N.m).
BATTERY SPECIFICATIONS
CAUTION: When battery is disconnected, vehicles equipped with
computers may lose memory data. When battery power is
restored, driveability problems may exist on some vehicles.
These vehicles may require a relearn procedure. See COMPUTER
RELEARN PROCEDURES article in the GENERAL INFORMATION
section.
All models use BCI group 41 batteries with cold crank rating