add to favorites contacts sitemap
REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Volkswagen Transporter, Caravelle (1990 release)

general info. full specifications. diagnostics. hints. tips. tricks
Volkswagen Transporter / Caravelle
Home
 
Volkswagen
Transporter / Caravelle
Instructions
Engine
General Data Engine
Removing and installing engine
Removing radiator
Removal and installation of a mudguard of the engine
Toothed belt
Cylinder Head
Removing and installing the camshaft
Hydraulic bucket tappets
Replacing valve stem seals
Valve
Compression Test
Belt
Troubleshooting Engine
Ignition system
Lubrication system
Engine cooling system
The power supply system of the engine
Fuel injection
Check of idling and the maintenance WITH
Idling stabilization
Shock Absorber Throttle
Injection valve
Switch idling
The value of the resistance temperature sensor
Check intake air preheating
Technical data of Digifant
Diagnostics of malfunctions of system of injection of fuel Digifant
Exhaust system
Coupling
Transmission
Suspension
A steering
Brakes
Wheels and tires
Body
Electrical
 


Hit Counter by Digits


print page printable version

Idling stabilization



The control unit Digifant and lambda probe

1. A compound of mass
It is attached to the body
2. Connection plug. Disconnect only when the ignition is switched off
3. The control unit Digifant. Manages injection and ignition, valve of stabilization of idling, lambda control, a permutation of the moment of ignition. Position - in the engine compartment on the left in the direction of movement. After replacing the control unit should be set up on the throttle potentiometer
new control unit
4. Connector for lambda probe heating and lambda probe. Position: on the bracket mounted units to the right in the direction of movement. Lambda adjustment: contact (3 - purple). The supply voltage for heating the oxygen sensor check with the engine running between terminals (1 - Red / Black) and (2 - brown). Required value: battery voltage (12 V). Check ohmmeter white wire heating lambda probe oxygen sensor connector
5. Lambda probe. Fitting Position: Front exhaust pipe near the flange. Coat the threads lubricated with grease VWG65.Smazka should not get into the spline area housing lambda probe
F - a vacuum hose to return valve for brake booster.

Verifying

PERFORMANCE ORDER
1. Turn on the ignition.
2. The valve (1) stabilization of idling should vibrate and hum. If not, check the adjustment.
3. Turn the ignition.
4. Disconnect from the valve and check the resistance of the valve. Resistance cm. In section 2.18.8.
5. If the values do not match, replacing the valve. Otherwise, find and repair the open in the wiring to the control unit on the diagram.

Check adjustment

PERFORMANCE ORDER
1. Test conditions: engine oil temperature at least 80 ?� C, the idle speed is correctly adjusted. Intake air tight.
2. Check the current administration. To do this, connect an ammeter.
3. Start the engine and run at idle.
4. After about 1 minute three times "to gas" (turnover each time slightly above 3000 rev / min) and measure the current at idle. Required value cm. In section 2.18.8.
5. Pull the plug from the coolant temperature sensor (arrow). To measure current (see the required value. In section 2.18.8).
6. If the test conditions are met, and the values do not match, then, as a rule, faulty control unit Digifant.
7. Query the memory and erase the record. As a result, disconnection of the plug (arrow) with a temperature sensor, a memory fault has been recorded.

A warning

Current management of idling stabilizer depends on the load of the engine while the engine is idling. As a result, the following load current control can range between 400-1000 mA:

- Cold engine;
- The air conditioner;
- Include electrical consumers;
- Power steering: steering wheel is turned;
- Adjusting the idle speed screw is screwed up to the stop;
- Incorrect adjustment of the ignition timing.






« previos page
Check of idling and the maintenance WITH
next page »
Shock Absorber Throttle

Copyright © 2010 AutoManuals.biz. Trademarks belong to their respective owners. All rights reserved.