Ignition

Introduction

1. General Description

1.1 Electronic Ignition System

1.2 Knock Sensor System

1.3 Digifant Ignition System

1.4 CIS-E Motronic Ignition System

1.5 Glow Plug System

1.6 System Identification and Applications

2. Maintenance

3. Troubleshooting

3.1 Basic Troubleshooting Principles

Test Equipment

Quick-Check of Ignition System

3.2 Ignition System Visual Inspection

3.3 Testing Coil and Spark Plug Wires

3.4 Testing Hall Sender and Ignition Control Unit (all except CIS-E Motronic and Digifant I)

Voltage Supply and Ground to Ignition Control Unit

Voltage Supply and Ground to Hall Sender

Hall Sender Switching Function

Ignition Control Unit Voltage to Coil

Ignition Control Unit Response to Hall Sender Signal

3.5 Testing Hall Sender and Coil Power Stage (CIS-E Motronic only)

Voltage Supply and Ground to Power Stage

Voltage Supply and Ground to Hall Sender

Hall Sender Switching Function

Motronic Control Unit Response to Hall Sender Signal

Power Stage Response to Motronic Control Unit Signal

3.6 Testing Hall Sender and Coil Power Stage (Digifant I only)

Power Stage Voltage Supply and Ground

Hall Sender Voltage Supply and Ground

Hall Sender Switching Function

Control Unit Response to Hall Sender Signal

Power Stage Response to Control Unit Signal

4. Transistorized Coil Ignition (TCI-h) System

4.1 Ignition Timing

4.2 Mechanical Timing Advance (basic TCI-h only, engine codes GX and MZ)

4.3 Electronic Timing Advance (TCI-h with knock control, engine codes HT, RD, PL, RV, PF, 9A)

Checking Timing Advance (engine codes HT, RD, PL)

Checking Digifant II and Digifant I Timing Advance (engine codes RV and PF)

Checking Motronic Timing Advance (engine code 9A)

4.4 Knock Sensor System Fault Diagnosis (engine codes HT, RD, PL, 9A)

CIS-E (engine codes HT, RD, PL)

CIS-E Motronic (engine code 9A)

4.5 Checking and Replacing Knock Sensor

4.6 Troubleshooting Knock Sensor System

5. Distributor

5.1 Removing and Installing Distributor Cap, Rotor, and Spark Plug Wires

Replacing Spark Plug Wires

Replacing Distributor Cap and Rotor

5.2 Removing and Installing Distributor

5.3 Disassembling and Assembling Distributor

All Engines except 16-valve

16-valve Engines

6. Diesel Glow Plug System

6.1 Testing and Replacing Glow Plugs

6.2 Testing and Repairing Glow Plug System Circuits

Checking Wiring

Glow Plug System Voltage Checks

Checking Glow Plug Relay

7. Technical Data

I. Ignition System Specifications

II. Knock Sensor Specifications