F - BASIC TESTING
Article Text (p. 12)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:44PM
No. 1 and No. 15 of the coil.
2) Turn the ignition on, using a jumper wire, briefly connect
the center terminal of the Hall Effect sender connector to ground. The
voltage should briefly increase to at least 2 volts then drop to zero.
If not, either the ECU or coil power stage are defective.
IGNITION CHECKS (AFC-DIGIFANT II)
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 each spark plug wire by holding wire terminal
5/16" ground while cranking engine.
2) Disconnect and inspect all related ignition system
connectors and harness. Clean or repair as necessary. If okay, remove
negative battery cable. Disconnect secondary and primary leads from
ignition coil.
3) Using ohmmeter, check 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 TABLEÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄApplication Ohms
Vanagon
Coil Wire With Connectors ................... 1200-2800
Spark Plug Wire/Connector ................... 4600-7400
Spark Plug Connector ........................ 4000-6000
Suppressor (1) ............................... 600-1400
All Other Models
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 wire and
distributor cap.
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ IGNITION COIL
IGNITION COIL RESISTANCE TABLE - Ohms @ 68
øF (20øC)
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄApplication Primary Secondary
Jetta GLi 2.0L ......... .60-.70 ............. 6900-8500
All Other Models ....... .52-.76 ............. 2400-3500
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ
N - REMOVE/INSTALL/OVERHAUL
Article Text (p. 5)
1990 Volkswagen Corrado
For Volkswagen Technical Site: http://vw.belcom.ru
Copyright © 1998 Mitchell Repair Information Company, LLC
Thursday, March 23, 2000 09:49PM
distributor. Install fuel distributor. See TORQUE SPECIFICATIONS for
tightening specifications. Connect all fuel lines except those to fuel
injectors. Check sensor plate adjusting lever and fuel distributor
control piston for smooth operation.
2) Remove fuel pump relay and bridge fuel pump circuit. Use
Jumper Switch (US 4480/3) in place of fuel pump relay. When pressure
has built up, turn off fuel pump. Move sensor plate from rest position
to end of travel.
3) Uniform resistance should be felt during entire movement.
No resistance should be felt during entire movement. No resistance
should be felt on quick return to rest position. Connect injector
lines. Install fuel pump relay. Start engine and check for leaks.
INJECTORS (DIGIFANT)
CAUTION: Fuel system pressure must be relieved before removing
injectors. Wipe up all spilled fuel BEFORE continuing
service.
Removal (AFC-Digifant II)
Disconnect negative battery cable. Disconnect main electrical
connector from fuel rail. Remove idle stabilizer valve. Loosen and
remove both hoses on each end of fuel rail. Remove fuel pressure
regulator and mounting bracket. Remove fuel rail mounting bolts. Pry
off injector mounting clips. Disconnect injector electrical
connectors. Remove fuel rail. Remove each injector from its insert.
Installation
To install injectors, reverse removal procedures. Use new "O"
rings when installing injectors. Replace hose clamps if necessary. See
TORQUE SPECIFICATIONS table at end of this article. Check for fuel
leaks.
INJECTORS (CIS SYSTEMS)
Removal (CIS-E & CIS-E Motronic)
Remove injectors from inserts in cylinder head with fuel
lines attached. Using 12-mm or 13-mm hex wrench, remove inserts from
head. Use 2 wrenches to remove injectors from fuel lines.
Installation
To install, reverse removal procedures. Use 2 wrenches when
tightening injector lines to injectors. Use new "O" rings lightly
lubricated. On models with 2-piece inserts, replace insert sealing
washer (against head) and use sealing compound on upper insert
threaded portion. See TORQUE SPECIFICATIONS.
OXYGEN (O2) SENSOR
Removal & Installation
Oxygen (O2) sensor is mounted in the exhaust pipe in front of
catalytic converter. Disconnect permanent pigtail from sensor. Ensure
