Manual sections

• A/c Compressor
• Abbreviations
• Accessory Drive Belts
• Adjustments
• Air Bag Restraint System
• Airbag
• Antenna Systems
• Anti-Lock/traction Control
• Application
• Automatic HVAC System
• Automatic Trans
• Auxiliary Emission Control Systems
• Axle Shafts
• Basic Trouble Shooting
• Blowers, Superchargers & Turbochargers
• Brakes
• Charging System
• Check Lists
• Communication Devices
• Computer Relearn
• Cooling Fan
• Cooling System (mechanical)
• Cruise Control Systems
• Diagnosis - 4t60-e
• Diagnostic Connector Locations
• Door Locks & Anti-Theft Systems
• Driveline/axles
• Electrical Component Locations
• Electronic Steering
• Electronic Suspension
• Emission Applications
• Engine
• Engine Controls - System/component Tests - v6
• Engine Controls - Tests W/codes - 3.8l
• Engine Performance
• Exterior Lights
• Fuses & Circuit Breakers
• Gauges & Instrument Panels
• General Servicing - All Makes
• Headlights
• Heated Glass/defoggers
• Identification
• Manual & Power Steering
• Manual HVAC System
• MAP Guidelines
• Mechanical
• Mechanical - Hydraulic
• Metric Conversions
• Mirrors
• Pin Voltage Charts
• Procedures
• Removal & Installation
• Reset Procedures
• Restraints
• Rpo Codes
• Seats
• Sensor Range Charts
• Specifications
• Starter
• Steering
• Steering Column
• Steering Column Switches
• Sun Roof/t-Top/convertible Top
• Suspension Front
• Suspension Rear
• Testing & Diagnostics
• Theory & Operation
• Traction Control Disable
• Transmission
• Warning System
• Wheel Alignment
• Windows
• Wiper/washer Systems
• Wiring Diagrams - Engine Performance

Repair manual

Engine Controls - Tests W/codes - 3.8l Buick Park Avenue I

Step-by-step instructions on "Engine Controls - Tests W/codes - 3.8l" for Buick Park Avenue I (1991–1996). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

103subsections

103articles

105illustrations

INTRODUCTION

1 article

• INTRODUCTION

SELF-DIAGNOSTIC SYSTEM

1 article

• SELF-DIAGNOSTIC SYSTEM

HARD FAILURES

1 article

• HARD FAILURES

INTERMITTENT FAILURES

1 article

• INTERMITTENT FAILURES

DIAGNOSTIC PROCEDURE

1 article

• DIAGNOSTIC PROCEDURE

RETRIEVING CODES (NON-SCAN)

1 article

• RETRIEVING CODES (NON-SCAN) 1

READING TROUBLE CODES

1 article

• READING TROUBLE CODES

TROUBLE CODE DEFINITION

1 article

• TROUBLE CODE DEFINITION

HARD OR INTERMITTENT TROUBLE CODE DETERMINATION

1 article

• HARD OR INTERMITTENT TROUBLE CODE DETERMINATION

CLEARING TROUBLE CODES

1 article

• CLEARING TROUBLE CODES

ECM/PCM LOCATION

1 article

• ECM/PCM LOCATION

Diagnostic Aids

1 article

• Diagnostic Aids

Field Service Mode Check

1 article

• Field Service Mode Check

SPECIAL TOOLS (DIAGNOSTIC)

1 article

• SPECIAL TOOLS (DIAGNOSTIC)

SCAN TESTER USAGE

1 article

• SCAN TESTER USAGE

SCAN DATA

1 article

• SCAN DATA

ECM/PCM CODE CHARTS

1 article

• ECM/PCM CODE CHARTS

CODE 13 - OPEN OXYGEN SENSOR CIRCUIT

1 article

• CODE 13 - OPEN OXYGEN SENSOR CIRCUIT 2

CODE 14 - COOLANT TEMPERATURE SENSOR (SIGNAL VOLTAGE LOW)

1 article

• CODE 14 - COOLANT TEMPERATURE SENSOR (SIGNAL VOLTAGE LOW) 2

CODE 15 - COOLANT TEMPERATURE SENSOR (SIGNAL VOLTAGE HIGH)

1 article

• CODE 15 - COOLANT TEMPERATURE SENSOR (SIGNAL VOLTAGE HIGH) 1

CODE 16 - SYSTEM VOLTAGE HIGH/LOW (3.8L)

1 article

• CODE 16 - SYSTEM VOLTAGE HIGH/LOW (3.8L) 1

CODE 17 - RPM SIGNAL PROBLEM (3.8L)

1 article

• CODE 17 - RPM SIGNAL PROBLEM (3.8L) 5

CODE 18 - CAM/CRANK ERROR (3.8L "C", "H" & "W" BODIES)

1 article

• CODE 18 - CAM/CRANK ERROR (3.8L "C", "H" & "W" BODIES) 1

CODE 21 - THROTTLE POSITION SENSOR (SIGNAL VOLTAGE HIGH)

1 article

• CODE 21 - THROTTLE POSITION SENSOR (SIGNAL VOLTAGE HIGH) 2

CODE 22 - THROTTLE POSITION SENSOR (SIGNAL VOLTAGE LOW)

1 article

• CODE 22 - THROTTLE POSITION SENSOR (SIGNAL VOLTAGE LOW) 1

CODE 23 - MAT SENSOR (SIGNAL VOLTAGE HIGH)

1 article

• CODE 23 - MAT SENSOR (SIGNAL VOLTAGE HIGH) 2

CODE 24 - VEHICLE SPEED SENSOR (3.8L "W" BODY)

1 article

• CODE 24 - VEHICLE SPEED SENSOR (3.8L "W" BODY) 2

CODE 24 - VEHICLE SPEED SENSOR (3.8L "C", "E" & "H" BODIES)

1 article

• CODE 24 - VEHICLE SPEED SENSOR (3.8L "C", "E" & "H" BODIES) 2

CODE 25 - MAT SENSOR (SIGNAL VOLTAGE LOW)

1 article

• CODE 25 - MAT SENSOR (SIGNAL VOLTAGE LOW) 1

CODE 26 - QUAD-DRIVER "A" (3.8L "C" & "H" BODIES) (1 OF 3)

1 article

• CODE 26 - QUAD-DRIVER "A" (3.8L "C" & "H" BODIES) (1 OF 3) 2

CODE 26 - QUAD-DRIVER "A" (3.8L "C" & "H" BODIES) (2 OF 3)

1 article

• CODE 26 - QUAD-DRIVER "A" (3.8L "C" & "H" BODIES) (2 OF 3) 1

CODE 26 - QUAD-DRIVER "A" (3.8L "C" & "H" BODIES)(3 OF 3)

1 article

• CODE 26 - QUAD-DRIVER "A" (3.8L "C" & "H" BODIES)(3 OF 3) 1

CODE 26 - QUAD-DRIVER ERROR (3.8L "E" BODY)(1 OF 3)

1 article

• CODE 26 - QUAD-DRIVER ERROR (3.8L "E" BODY)(1 OF 3) 2

CODE 26 - QUAD-DRIVER ERROR (3.8L "E" BODY)(2 OF 3)

1 article

• CODE 26 - QUAD-DRIVER ERROR (3.8L "E" BODY)(2 OF 3) 1

CODE 26 - QUAD-DRIVER ERROR (3.8L "E" BODY)(3 OF 3)

1 article

• CODE 26 - QUAD-DRIVER ERROR (3.8L "E" BODY)(3 OF 3) 1

CODE 26 - QUAD-DRIVER "A" ERROR (3.8L "W" BODY) (1 OF 4)

1 article

• CODE 26 - QUAD-DRIVER "A" ERROR (3.8L "W" BODY) (1 OF 4) 2

CODE 26 - QUAD-DRIVER "A" ERROR (3.8L "W" BODY)(2 OF 4)

1 article

• CODE 26 - QUAD-DRIVER "A" ERROR (3.8L "W" BODY)(2 OF 4) 1

CODE 26 - QUAD-DRIVER "A" ERROR (3.8L "W" BODY)(3 OF 4)

1 article

• CODE 26 - QUAD-DRIVER "A" ERROR (3.8L "W" BODY)(3 OF 4) 1

CODE 26 - QUAD-DRIVER "A" ERROR (3.8L "W" BODY)(4 OF 4)

1 article

• CODE 26 - QUAD-DRIVER "A" ERROR (3.8L "W" BODY)(4 OF 4) 1

CODE 31 - PARK/NEUTRAL SWITCH CIRCUIT

1 article

• CODE 31 - PARK/NEUTRAL SWITCH CIRCUIT 4

CODE 34 - MAF SENSOR (SIGNAL VOLTAGE LOW)

1 article

• CODE 34 - MAF SENSOR (SIGNAL VOLTAGE LOW)

Poor Connections

1 article

• Poor Connections

Harness

1 article

• Harness

Intermittents

1 article

• Intermittents 4

CODE 35 - IAC IDLE SPEED ERROR WITHOUT TECH 1

1 article

• CODE 35 - IAC IDLE SPEED ERROR WITHOUT TECH 1

System Too Lean

1 article

• System Too Lean

System Too Rich

1 article

• System Too Rich

Throttle Body

1 article

• Throttle Body

IAC Valve Connections

1 article

• IAC Valve Connections

PCV Valve

1 article

• PCV Valve 2

CODE 35 - IAC IDLE SPEED ERROR USING TECH I

1 article

• CODE 35 - IAC IDLE SPEED ERROR USING TECH I 1

CODE 36 - SHIFT PROBLEM (3.8L "C" & "H" BODIES)

1 article

• CODE 36 - SHIFT PROBLEM (3.8L "C" & "H" BODIES) 2

CODE 36 - SHIFT PROBLEM (3.8L "E" & "W" BODIES)

1 article

• CODE 36 - SHIFT PROBLEM (3.8L "E" & "W" BODIES) 3

CODE 38 - BRAKE SWITCH

1 article

• CODE 38 - BRAKE SWITCH 4

CODE 39 - TCC CIRCUIT W/O TECH 1 (3.8L W/4T60 TRANS)

1 article

• CODE 39 - TCC CIRCUIT W/O TECH 1 (3.8L W/4T60 TRANS) 3

CODE 39 - TCC CIRCUIT USING TECH 1 (3.8L W/4T60 TRANS)

1 article

• CODE 39 - TCC CIRCUIT USING TECH 1 (3.8L W/4T60 TRANS) 1

CODE 41 - CAM SENSOR CIRCUIT (3.8L "C", "E" & "H" BODIES)

1 article

• CODE 41 - CAM SENSOR CIRCUIT (3.8L "C", "E" & "H" BODIES)

Poor Connection

1 article

• Poor Connection 1

CODE 41 - CAM SENSOR CIRCUIT (TYPE II, "C", "E", "H" & "W" BODY)

1 article

• CODE 41 - CAM SENSOR CIRCUIT (TYPE II, "C", "E", "H" & "W" BODY) 1

CODE 42 - EST CIRCUIT OPEN OR GROUNDED

1 article

• CODE 42 - EST CIRCUIT OPEN OR GROUNDED 1

CODE 43 - ESC ERROR (WITHOUT ESC MODULE)

1 article

• CODE 43 - ESC ERROR (WITHOUT ESC MODULE) 2

CODE 44 - LEAN EXHAUST INDICATION

1 article

• CODE 44 - LEAN EXHAUST INDICATION

O2 Sensor Wire

1 article

• O2 Sensor Wire

Fuel Contamination

1 article

• Fuel Contamination

Fuel Pressure

1 article

• Fuel Pressure

Exhaust Leaks

1 article

• Exhaust Leaks

Misfire Or Stall

1 article

• Misfire Or Stall 1

CODE 45 - RICH EXHAUST INDICATION

1 article

• CODE 45 - RICH EXHAUST INDICATION

Fuel Pressure High

1 article

• Fuel Pressure High

Ignition Ground

1 article

• Ignition Ground

Evaporative Fuel Canister

1 article

• Evaporative Fuel Canister

MAP Sensor

1 article

• MAP Sensor

TPS

1 article

• TPS

O2 Sensor Contamination

1 article

• O2 Sensor Contamination

EGR Problem

1 article

• EGR Problem 1

CODE 48 - MISFIRE DIAGNOSIS

1 article

• CODE 48 - MISFIRE DIAGNOSIS

Ignition System Checks

1 article

• Ignition System Checks

Fuel System Checks

1 article

• Fuel System Checks

Basic Engine Checks

1 article

• Basic Engine Checks 1

CODE 51 - FAULTY PROM/MEM-CAL

1 article

• CODE 51 - FAULTY PROM/MEM-CAL

CODE 52 - FAULTY CAL-PAK

1 article

• CODE 52 - FAULTY CAL-PAK

CODES 53, 54 & 55 - EGR FAULT (3.8L (VIN L) EXCEPT "E" BODY)

1 article

• CODES 53, 54 & 55 - EGR FAULT (3.8L (VIN L) EXCEPT "E" BODY) 3

CODES 54 & 55 - EGR FAULT (3.8L (VIN 1) "C" & "H" BODIES)

1 article

• CODES 54 & 55 - EGR FAULT (3.8L (VIN 1) "C" & "H" BODIES) 2

CODE 55 - ECM ERROR (EXCEPT 3.8L (VIN 1))

1 article

• CODE 55 - ECM ERROR (EXCEPT 3.8L (VIN 1))

CODE 56 - QUAD-DRIVER ERROR (3.8L EXCEPT "E" BODY)(1 OF 2)

1 article

• CODE 56 - QUAD-DRIVER ERROR (3.8L EXCEPT "E" BODY)(1 OF 2)

Quad-Driver Related Symptoms

1 article

• Quad-Driver Related Symptoms 4

CODE 56 - QUAD-DRIVER ERROR (3.8L EXCEPT "E" BODY)(2 OF 2)

1 article

• CODE 56 - QUAD-DRIVER ERROR (3.8L EXCEPT "E" BODY)(2 OF 2) 1

CODE 57 - BOOST CONTROL PROBLEM (3.8L (VIN 1))

1 article

• CODE 57 - BOOST CONTROL PROBLEM (3.8L (VIN 1)) 2

CODE 58 - PASS-KEY FUEL ENABLE CIRCUIT (3.8L EXCEPT "W" BODY)

1 article

• CODE 58 - PASS-KEY FUEL ENABLE CIRCUIT (3.8L EXCEPT "W" BODY)

Pass-Key Diagnosis

1 article

• Pass-Key Diagnosis 3

CODE 61 - CRUISE VENT SOLENOID (3.8L)

1 article

• CODE 61 - CRUISE VENT SOLENOID (3.8L) 4

CODE 62 - CRUISE VACUUM SOLENOID (3.8L)

1 article

• CODE 62 - CRUISE VACUUM SOLENOID (3.8L) 1

CODE 63 - CRUISE SYSTEM PROBLEM (3.8L EXCEPT "E" BODY)

1 article

• CODE 63 - CRUISE SYSTEM PROBLEM (3.8L EXCEPT "E" BODY) 1

CODE 65 - CRUISE SERVO POSITION (3.8L)

1 article

• CODE 65 - CRUISE SERVO POSITION (3.8L) 1

CODE 66 - LOW A/C REFRIGERANT CHARGE (3.8L EXCEPT "E" BODY (W/O DIGITAL DISPLAY))

1 article

• CODE 66 - LOW A/C REFRIGERANT CHARGE (3.8L EXCEPT "E" BODY (W/O DIGITAL DISPLAY)) 3

CODE 66 - LOW A/C REFRIGERANT CHARGE (3.8L "C" & "H" BODIES (W/DIGITAL DISPLAY))

1 article

• CODE 66 - LOW A/C REFRIGERANT CHARGE (3.8L "C" & "H" BODIES (W/DIGITAL DISPLAY)) 2

CODE 67 - CRUISE ENGAGE SWITCHES (3.8L EXCEPT "W" BODY)

1 article

• CODE 67 - CRUISE ENGAGE SWITCHES (3.8L EXCEPT "W" BODY) 3

CODE 67 - CRUISE SWITCHES (3.8L (VIN L) "W" BODY)

1 article

• CODE 67 - CRUISE SWITCHES (3.8L (VIN L) "W" BODY) 2

CODE 68 - CRUISE SYSTEM PROBLEM (USING TECH 1) (3.8L)

1 article

• CODE 68 - CRUISE SYSTEM PROBLEM (USING TECH 1) (3.8L) 1

CODE 69 - A/C HEAD PRESSURE SWITCH (3.8L "C" & "H" BODIES)

1 article

• CODE 69 - A/C HEAD PRESSURE SWITCH (3.8L "C" & "H" BODIES) 2

CODE 69 - A/C HEAD PRESSURE SWITCH (3.8L "W" BODY)

1 article

• CODE 69 - A/C HEAD PRESSURE SWITCH (3.8L "W" BODY) 2

CODE 85 - PROM ERROR & CODE 87 - EEPROM ERROR

1 article

• CODE 85 - PROM ERROR & CODE 87 - EEPROM ERROR

SUMMARY

1 article

• SUMMARY