005 Volkswagen Passat-Official Factory Repair Manual (2.0 Liter 4-Cyl 2V Fuel Injection & Ignition) 1995.pdf

2.0 Liter 4-Cyl. 2V Fuel Injection & Ignition, Engine Code(s): ABA m.y.

1995

01 - On Board Diagnostic (OBD)

On Board Diagnostic

Function

Technical data

VAG 1551 Scan Tool (ST), connecting and selecting function

Engine Control Module (ECM) coding, checking

Diagnostic Trouble Code (DTC) memory, checking ((VAG 1551 function 02)

Diagnostic Trouble Code (DTC) table

Diagnostic Trouble Code (DTC) memory, erasing ((VAG 1551 function 05)

Output Diagnostic Test Mode (DTM) (VAG 1551 function 03)

Read measuring value block (VAG 1551 function 04)

24 - Multiport Fuel Injection (MFI)

Motronic fuel injection and ignition system

Component overview

Motronic fuel injection system, servicing

Components, removing and installing

Intake manifold, upper, disassembling and assembling

Intake manifold, lower, disassembling and assembling

Air cleaner, disassembling and assembling

Safety precautions

Rules for cleanliness

Technical data

Idle check

Idle air control, checking

Heated Oxygen Sensor (HO2S) and oxygen sensor control, checking

Oxygen sensor heating, checking

Engine operating mode, checking

Mass Air Flow (MAF) sensor, checking

Throttle Position (TP) sensor, checking

Transmission Control Module (TCM) and Throttle Position (TP) sensor, matching

Engine Coolant Temperature (ECT) sensor, checking

Intake Air Temperature (IAT) sensor, checking

Engine Speed (RPM) sensor, checking

Vehicle speed signal, checking

Engine Control Module (ECM) voltage supply, checking

Air conditioning compressor signal, checking

Fuel injectors, checking

Fuel injector spray pattern and leakage, checking

Fuel pressure regulator and residual pressure, checking

Intake air system, checking for leaks (outside air)

Intake air preheating, checking

28 - Ignition/Glow plug system

Motronic fuel injection and ignition system

Motronic ignition system, servicing

Safety precautions

Technical data, spark plugs

Distributor, removing and installing

Ignition timing control, checking

Camshaft Position (CMP) sensor, checking

Knock sensor, checking

Ignition coil, checking

Ignition coil power output stage, checking

On Board Diagnostic

Page 1 of 56

01-1

On Board Diagnostic

Function

The Motronic Engine Control Module (ECM)

J220 is equipped with Diagnostic Trouble

Code (DTC) memory.

Malfunctions in monitored sensors or

components are stored in DTC memory along

with an indication of the type of malfunction.

Check DTC memory and display stored

Diagnostic Trouble Codes (DTC) by initiating

the On Board Diagnostic (OBD) program

using the VAG 1551 Scan Tool (ST) page

01-9 .

The DTC memory must be erased after the

malfunction has been repaired page 01-

37 .

A malfunction that affects oxygen sensor

control can only be read accurately after the

car has been driven for at least 10 minutes.

Malfunctions that can be attributed to a

temporary open circuit in the wiring, or a

loose terminal, will also be stored. These

malfunctions will be displayed as sporadic

malfunctions "SP" and are automatically

cancelled if they are not repeated after 40

engine starts.

Note:

The Malfunction Indicator Lamp (MIL) in the

instrument panel must light up when the

ignition is switched on and go off when the

engine is started (running). As long as

malfunctions occur in the monitored sensors

or components and the monitoring conditions

are met, the Malfunction Indicator Lamp lights

up even with the engine running.

http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...

5/12/2004

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