Porsche 944 1987 Manuals

Manuals and User Guides for Porsche 944 1987. We have 1 Porsche 944 1987 manual available for free PDF download: Workshop Manual

Porsche 944 1987 Workshop Manual (168 pages)

Porsche Automobile Workshop Manual

Brand: Porsche | Category: Automobile | Size: 4.23 MB

Table of Contents
2
Table of Contents
3
Type 944 S (16-Valve Engines) - '87 Models Onward
4
Technical Data
4
Technical Data
5
Drive Unit
5
Engine Design
5
Exhaust System
7
Emission Control
7
Engine Lubrication
7
Engine Cooling
7
Fuel System
8
Electrical System
8
Body Designs
9
Dimensions
9
Weights
10
Capacities
11
Performance
11
Climbing Performance
11
Technical Data - Type 944 52 - Model 89
12
DME Control Unit Error Diagnosis
13
Display
14
Connection in the 944 S
15
Diagnosis Socket in the Car
15
Ignition off
15
Tester Cable
16
Switch on the Ignition
16
Starting Error Diagnosis
17
Starting Actuator and Input Signal Function Check
19
Actuator and Input Signal Function Checking
19
Test Code List
25
Test Code Components
25
System Adaption
27
Knock Detection
29
Error Possibilities
30
Troubleshooting
31
Error Code 1111
31
Battery Exhausted
31
Switch Stuck
32
Testing the Idle Contact
32
Ground Fault
32
Error Code 1112
32
Error Code 1113
33
Error Code 1114
33
Testing the Full Load Contact
33
Error Code 1121
34
Testing the Power Supply of the Air-Flow Sensor
35
Testing the Air-Flow Sensor
35
Possible Causes for too Rich a Mixture
36
Possible Causes for too Lean a Mixture
36
Error Code 1124
36
Error Code 1123
36
Error Code 1125
37
Error Code 1131
38
Error Code 1132
38
Error Code 1133
39
Error Code 1134
39
Testing the Hall Generator Signal
39
Error Code 1141
40
Testing the Hall Generator's Power Supply
40
Error Code - List
41
Resetting the Error Memory
43
Operating Conditions for Start of Diagnosis
44
Operating Instructions for System Tester 9288
45
Self-Diagnosis
46
General Information
46
Application
46
Construction
46
System Adaptation
46
Knock Detection
46
Reading-Out the Error Memory
47
Charging with the Battery Charger
47
Testing
47
Connection
47
Circuit Inputs
49
System Adaptation
49
Engine-Knock Registration
50
Service and Wear Parts (BOSCH)
51
Service Parts (Porsche)
51
Store Measurement Displays
51
Show Stored Measurement Displays
51
Tightening Torques for Engine (16-Valve)
53
Tolerances and Wear Limits
54
Tools
57
Removing and Installing Engine (16-Valve Engines)
57
Removing and Installing Engine (Manual Transmission)
58
Installing
63
Pistons. '87 Models Onward
65
Checking Pistons and Cylinder Bores
66
Pistons from Model 89 Onwards
67
Checking Pistons and Cylinder Bore
67
Adjusting with Dial Gages
73
Checking or Adjusting Camshaft Setting for Model 89 Onward
75
Setting
75
Applying the TDC Mark on the Camshaft Sprocket
76
Tools - Removing and Installing Camshafts and Cylinder Head, Degrees-Of-Turn Method of Torquing (16-Valve Engines)
77
Removing and Installing Camshafts and Cylinder Head
78
Installing and Tightening the Cylinder Head
82
Installing Camshafts
83
Installing Camshaft Seal
85
Engine Installed
85
Removing and Installing Chain Tensioner
87
Tools - Cylinder Head (16-Valve Engines)
89
Disassembling and Assembling Cylinder Head (16-Valve Engines)
90
Removing and Installing Valve Springs
92
Cylinder Head (16 Valves)
92
Remachining Cylinder-Head Maling Face
94
Checking Cylinder Head for Distortion
94
Remachining Cylinder Head
94
Cylinder Head Refacing Dimension and Identification
94
Removing Valve Stem Seal
95
Installing Valve Stem Seal
96
Checking the Valve Guides
97
Replacing Valve Guides
99
- Drawing
  100
- Replacing the Valve Guides
  102
- Checking the Valve Seat Wear Limit
  104
- Checking and Remachining Valve Seats
  105
- Valve Dimensions
  106
Checking and Adjusting Installation Length of Valve Springs
107
Engine - Coating
111
- Replacing Fuel Filter (16-Valve Engines)
  113
- Checking Fuel and Injection Lines for Leaks and Loose Connections
  113
Fuel Supply
113
Checking Delivery Rate of Fuel Pump
114
Testing and Adjusting Specifications
118
Checking Fuel Pressure
119
Checking Preconditions
121
Checking Idle Speed and CO - with Catalytic Convertor
121
Idle/Co Adjustment
122
Checking Idle Speed and CO - Without Catalytic Convertor
122
- Replacing Air Filter Insert
  123
- Checking Tightness of Exhaust System Flanges (16-Valve Engines)
  125
Ignition System
127
Equipment Table
127
- DME Control Unit
  128
- Hall Probe for Knock Sensors
  128
- Knock Sensor
  128
- Dme Control Unit Coding, 944 S, '87 Models Onward
  129
- Replacing Spark Plugs, 944 S
  130
Equipment Table, Model 89 Onward
131
Coding - DEE Control Unit 944 S 2, Model 89 Onwards
133
DME-Diagnosing / Troubleshooting
134
- Precautions
  136
- Important Vehicle Information
  137
- Power Supply
  139
- Tester Connections
  139
- Idle Speed Contact
  144
- Full Load Contact
  145
- Air Flow Sensor
  147
- Oxygen Sensor
  150
- Knock Sensor
  151
- Control Unit Faulty
  152
- Hall Signal
  152
- Tank Venting Valve
  154
- Fuel Pressure
  155
- Intake System Leaks
  156
  - Plug Connections
    157
  - Test Point 21: Speed/Reference Mark Sender
    158
  - Test Point 22: Ignition
    159
  - Activation of High Tension End
    160
  - Ignition Timing Test
    160
  - Ignition Final Stage Control Signal Test
    161
  - Test Point 23: Fuel Injectors - Injection Timing (V/ )
    162
- Alternator / Regulator
  163
  - Test Point 24: Alternator, Regulator
    163
  - Test Point 25: Leads K and L
    163
- Coding of Control Unit - 944 S
  165
- Coding Af Control Unit - 944 S 2
  166
- Check-Engine Lamp
  167

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Porsche 944 1987 Workshop Manual (168 pages)

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