Manual sections

• Abbreviations
• Accessory Drive Belts
• Adjustments
• Airbag
• Application
• Automatic Trans
• Axle Shafts
• Basic Trouble Shooting
• Brakes
• Charging System
• Check Lists
• Clutches Manual & Hydraulic
• Computer Relearn
• Cooling Fan
• Cooling System (mechanical)
• Cruise Control Systems
• Diagnostic Connector Locations
• Differentials & Drive Axles
• Door Locks & Anti-Theft Systems
• Driveline/axles
• Electrical Component Locations
• Emission Applications
• Engine
• Engine Controls - Tests W/codes - 2.3l
• Engine Performance
• Fuses & Circuit Breakers
• Gauges & Instrument Panels
• General Servicing - All Makes
• Heated Glass/defoggers
• Heater
• Identification
• Manual & Power Steering
• Manual HVAC System
• Manual Trans
• MAP Guidelines
• Mechanical
• Mechanical - Hydraulic
• Metric Conversions
• Mirrors
• Oem General Information
• Passive Restraints
• Pin Voltage Charts
• Procedures
• Removal & Installation
• Reset Procedures
• Seats
• Sensor Range Charts
• Specifications
• Starter
• Steering
• Steering Column
• Steering Linkage
• Suspension Front
• Suspension Rear
• Testing & Diagnostics
• Theory & Operation
• Traction Control Disable
• Transmission
• Wheel Alignment
• Windows
• Wiper/washer Systems
• Wiring Diagrams - Engine Performance

Repair manual

Engine Controls - Tests W/codes - 2.3l Mercury Topaz II

Step-by-step instructions on "Engine Controls - Tests W/codes - 2.3l" for Mercury Topaz II (1987–1994). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

INTRODUCTION

• INTRODUCTION

DIAGNOSTIC FORMATS

• DIAGNOSTIC FORMATS

SERVICE CODE DESCRIPTIONS

• SERVICE CODE DESCRIPTIONS

KOEO & KOER CODES (HARD FAULTS)

• KOEO & KOER CODES (HARD FAULTS)

CONTINUOUS MEMORY CODES (SOFT FAULTS)

• CONTINUOUS MEMORY CODES (SOFT FAULTS)

RETRIEVING CODES

• RETRIEVING CODES

CLEARING CODES

• CLEARING CODES

KOEO & KOER SELF-TEST CODES

• KOEO & KOER SELF-TEST CODES

SEPARATOR PULSE

• SEPARATOR PULSE

PASS CODES

• PASS CODES

CONTINUOUS MEMORY CODES

• CONTINUOUS MEMORY CODES

FAST CODES

• FAST CODES

DESCRIPTION

• DESCRIPTION

VISUAL CHECK & VEHICLE PREPARATION

• VISUAL CHECK & VEHICLE PREPARATION

EQUIPMENT HOOK-UP

• EQUIPMENT HOOK-UP

ANALOG VOLT/OHMMETER (VOM)

• ANALOG VOLT/OHMMETER (VOM)

SCAN TOOL

• SCAN TOOL

STAR TESTER

• STAR TESTER

CHECK ENGINE OR SERVICE ENGINE SOON LIGHT (MIL)

• CHECK ENGINE OR SERVICE ENGINE SOON LIGHT (MIL)

KOEO SELF-TEST

• KOEO SELF-TEST

COMPUTED TIMING CHECK

• COMPUTED TIMING CHECK

KOER SELF-TEST

• KOER SELF-TEST

CONTINUOUS MONITOR MODE (WIGGLE TEST)

• CONTINUOUS MONITOR MODE (WIGGLE TEST)

KOEO WIGGLE TEST PROCEDURE

• KOEO WIGGLE TEST PROCEDURE

KOER WIGGLE TEST PROCEDURE

• KOER WIGGLE TEST PROCEDURE

ADDITIONAL SYSTEM FUNCTIONS

• ADDITIONAL SYSTEM FUNCTIONS

CHECK ENG/SERVICE ENG SOON MALFUNCTION INDICATOR LIGHT (MIL)

• CHECK ENG/SERVICE ENG SOON MALFUNCTION INDICATOR LIGHT (MIL)

MALFUNCTION INDICATOR APPLICATION

• MALFUNCTION INDICATOR APPLICATION

OUTPUT STATE CHECK

• OUTPUT STATE CHECK

FAILURE MODE EFFECTS MANAGEMENT (FMEM), CODE 98

• FAILURE MODE EFFECTS MANAGEMENT (FMEM), CODE 98

HARDWARE LIMITED OPERATIONAL STRATEGY (HLOS)

• HARDWARE LIMITED OPERATIONAL STRATEGY (HLOS)

CYLINDER BALANCE TEST

• CYLINDER BALANCE TEST

FREQUENTLY USED EEC-IV ABBREVIATIONS

• FREQUENTLY USED EEC-IV ABBREVIATIONS

SUMMARY

• SUMMARY

ALL PFI & MA PFI MODELS

• ALL PFI & MA PFI MODELS

KOEO CODE/TEST MENU - 2.3L

• KOEO CODE/TEST MENU - 2.3L

KOER CODE/TEST MENU - 2.3L

• KOER CODE/TEST MENU - 2.3L

CONTINUOUS CODE/TEST MENU - 2.3L

• CONTINUOUS CODE/TEST MENU - 2.3L

CIRCUIT TESTS

• CIRCUIT TESTS

HOW TO USE CIRCUIT TESTS (TESTS A TO X)

• HOW TO USE CIRCUIT TESTS (TESTS A TO X)

ECA SENSOR RESISTANCE & PIN VOLTAGE REFERENCE CHART

• ECA SENSOR RESISTANCE & PIN VOLTAGE REFERENCE CHART

NO START

• NO START

TEST AA - NO START (EDIS IGNITION SYSTEMS)

• TEST AA - NO START (EDIS IGNITION SYSTEMS)

TEST B - CHECKING VEHICLE BATTERY

• TEST B - CHECKING VEHICLE BATTERY

TEST C - REFERENCE VOLTAGE

• TEST C - REFERENCE VOLTAGE

TEST DA - TEMPERATURE SENSOR TEST (ACT, ECT & VAT)

• TEST DA - TEMPERATURE SENSOR TEST (ACT, ECT & VAT)

TEST DC - MASS AIRFLOW SENSOR (MAF)

• TEST DC - MASS AIRFLOW SENSOR (MAF)

2.3L MA PFI ENGINES

• 2.3L MA PFI ENGINES

ALL OTHER ENGINES

• ALL OTHER ENGINES

EGR VALVE POSITION (EVP) SENSOR EGR CONTROL (EGRC) SOLENOID & EGR VENT (EGRV) SOLENOID

• EGR VALVE POSITION (EVP) SENSOR EGR CONTROL (EGRC) SOLENOID & EGR VENT (EGRV) SOLENOID

MANIFOLD ABSOLUTE PRESSURE (MAP)/BAROMETRIC PRESSURE (BP) SENSORS

• MANIFOLD ABSOLUTE PRESSURE (MAP)/BAROMETRIC PRESSURE (BP) SENSORS

TEST DG - KNOCK SENSOR (KS)

• TEST DG - KNOCK SENSOR (KS)

TEST DH - THROTTLE POSITION SENSOR (TPS)

• TEST DH - THROTTLE POSITION SENSOR (TPS)

PRESSURE FEEDBACK EGR (PFE) VALVE & EGR VACUUM REGULATOR

• PRESSURE FEEDBACK EGR (PFE) VALVE & EGR VACUUM REGULATOR

EGR VALVE POSITION (EVP) SENSOR & EGR VALVE REGULATOR (EVR) SOLENOID

• EGR VALVE POSITION (EVP) SENSOR & EGR VALVE REGULATOR (EVR) SOLENOID

TEST DP - VEHICLE SPEED SENSOR (VSS)

• TEST DP - VEHICLE SPEED SENSOR (VSS)

PRELIMINARY INSTRUCTIONS - AUTO TRANS

• PRELIMINARY INSTRUCTIONS - AUTO TRANS

PRELIMINARY INSTRUCTIONS - MAN TRANS

• PRELIMINARY INSTRUCTIONS - MAN TRANS

TEST DR - CYLINDER IDENTIFICATION (CID) SENSOR

• TEST DR - CYLINDER IDENTIFICATION (CID) SENSOR

TEST FA - NEUTRAL DRIVE SWITCH (NDS) A/C INPUT CKT

• TEST FA - NEUTRAL DRIVE SWITCH (NDS) A/C INPUT CKT

TEST FD - BRAKE ON/OFF SWITCH (BOO)

• TEST FD - BRAKE ON/OFF SWITCH (BOO)

TEST FF - POWER STEERING PRESSURE SWITCH (PSPS)

• TEST FF - POWER STEERING PRESSURE SWITCH (PSPS)

TEST H - FUEL CONTROL

• TEST H - FUEL CONTROL

PFI ENGINES

• PFI ENGINES

SEQUENTIAL PFI ENGINES

• SEQUENTIAL PFI ENGINES

4-WIRE HEGO SENSORS

• 4-WIRE HEGO SENSORS

ALL OTHER HEGO SENSORS

• ALL OTHER HEGO SENSORS

2.3L MA CARS

• 2.3L MA CARS

FOR ALL OTHERS

• FOR ALL OTHERS

ALL VEHICLES WITH DUAL HEGO SENSORS

• ALL VEHICLES WITH DUAL HEGO SENSORS

ALL MA PFI ENGINES

• ALL MA PFI ENGINES

Circuits

• Circuits

Unmetered Air/Vacuum Leaks

• Unmetered Air/Vacuum Leaks

HEGO Fuel Fouled

• HEGO Fuel Fouled

Ignition System

• Ignition System

Improper Fuel Used

• Improper Fuel Used

Fuel Pressure

• Fuel Pressure

TP Sensor

• TP Sensor

CODE 41

• CODE 41

CODE 42

• CODE 42

CODE 43

• CODE 43

CODE 65

• CODE 65

CODE 85

• CODE 85

CODE 86

• CODE 86

Codes 41 and 42

• Codes 41 and 42

TEST J - FUEL PUMP CKT (RELAY & INERTIA SWITCH)

• TEST J - FUEL PUMP CKT (RELAY & INERTIA SWITCH)

No Starts

• No Starts

Vehicle Starts

• Vehicle Starts

TEST KA - EGR ON/OFF CONTROL

• TEST KA - EGR ON/OFF CONTROL

TEST KC - AIR MANAGEMENT SYSTEM (AM1/AM2)

• TEST KC - AIR MANAGEMENT SYSTEM (AM1/AM2)

TEST KD - CANISTER PURGE (CANP)

• TEST KD - CANISTER PURGE (CANP)

TEST KE - IDLE SPEED CONTROL (AIR BY-PASS)

• TEST KE - IDLE SPEED CONTROL (AIR BY-PASS)

ELECTRO DRIVE FAN (EDF)/HIGH ELECTRO DRIVE FAN (HEDF)

• ELECTRO DRIVE FAN (EDF)/HIGH ELECTRO DRIVE FAN (HEDF)

CODE 83

• CODE 83

CODE 88

• CODE 88

TEST KH - SERVICE PIN ADJUSTMENT

• TEST KH - SERVICE PIN ADJUSTMENT

TEST KL - SHIFT INDICATOR LIGHT (SIL)

• TEST KL - SHIFT INDICATOR LIGHT (SIL)

WIDE OPEN THROTTLE A/C CUT-OUT (WAC) & A/C DEMAND SWITCH

• WIDE OPEN THROTTLE A/C CUT-OUT (WAC) & A/C DEMAND SWITCH

A/C Fan Controller (2.3L PFI - Car)

• A/C Fan Controller (2.3L PFI - Car)

TEST KP - OCTANE ADJUST

• TEST KP - OCTANE ADJUST

TEST M, CODE 77 - DYNAMIC RESPONSE TEST

• TEST M, CODE 77 - DYNAMIC RESPONSE TEST

"CHECK ENGINE", "CHECK DCL", OR "SERVICE ENGINE SOON" LIGHT/MESSAGE (MALFUNCTION INDICATOR)

• "CHECK ENGINE", "CHECK DCL", OR "SERVICE ENGINE SOON" LIGHT/MESSAGE (MALFUNCTION INDICATOR)

TEST N - IGNITION DIAGNOSTIC MONITOR (IDM)

• TEST N - IGNITION DIAGNOSTIC MONITOR (IDM)

DISTRIBUTORLESS IGNITION SYSTEM (DIS)

• DISTRIBUTORLESS IGNITION SYSTEM (DIS)

ELECTRONIC DISTRIBUTORLESS IGNITION SYSTEM (EDIS)

• ELECTRONIC DISTRIBUTORLESS IGNITION SYSTEM (EDIS)

CLOSED BOWL DISTRIBUTOR (CBD)

• CLOSED BOWL DISTRIBUTOR (CBD)

TFI MODULE DISTRIBUTOR

• TFI MODULE DISTRIBUTOR

TEST P - SPARK TIMING CHECK

• TEST P - SPARK TIMING CHECK

TEST QA - NO CODES/CODES NOT LISTED

• TEST QA - NO CODES/CODES NOT LISTED

TEST QB, CODE 15 - KOEO OR CONTINUOUS MEMORY CODE

• TEST QB, CODE 15 - KOEO OR CONTINUOUS MEMORY CODE

TEST QC - OUTPUT STATE CHECK NOT FUNCTIONING

• TEST QC - OUTPUT STATE CHECK NOT FUNCTIONING

TEST QD - RE-INITIALIZATION CHECK

• TEST QD - RE-INITIALIZATION CHECK

TEST QE - KEY POWER CHECK

• TEST QE - KEY POWER CHECK

TEST S - SYSTEM CHECK

• TEST S - SYSTEM CHECK

TEST T - AXOD TRANSAXLE

• TEST T - AXOD TRANSAXLE

TEST TB - A4LD TRANSMISSION

• TEST TB - A4LD TRANSMISSION

TEST X - INTEGRAL RELAY CONTROL MODULE (IRCM)

• TEST X - INTEGRAL RELAY CONTROL MODULE (IRCM)