![Kohler Command PRO EFI ECH749 [86/180] Efi system ech](/img/pdf.png)
Kohler Command PRO EFI ECH749 [86/180] Efi system ech
![Kohler Command PRO EFI ECH749 [86/180] Efi system ech](/views2/1597403/page86/bg56.png)
EFI SYSTEM-ECH
86
24 690 01 Rev. OKohlerEngines.com
Code 0171
Component: Fuel System
Fault: Maximum adaptation limit exceeded
Condition: Fuel inlet screen/fi lter plugged, low
pressure at high pressure fuel line, TPS
malfunction, shorted connection, faulty
sensor, low fuel or wrong fuel type.
Conclusion: Oxygen Sensor Related
● Corrosion or poor connection.
● Sensor contaminated or damaged.
● Air leak into exhaust.
● Poor ground path.
● Pin circuit wiring or connectors.
ECU Black pin 10 or Black pin 17.
TPS Sensor Related
● Throttle plate position incorrect during
Learn procedure.
● TPS problem or malfunction.
Engine Wiring Harness Related
● Diff erence in voltage between sensed
voltage and actual sensor voltage.
● Problem in wiring harness.
● ECU-to-harness connection problem.
Systems Related
● Ignition (spark plug, plug wire, ignition
coil).
● Fuel (fuel type/quality, injector, fuel
pressure too low, fuel pump module or
lift pump).
● Combustion air (air cleaner dirty/
restricted, intake leak, throttle bores).
● Base engine problem (rings, valves).
● Exhaust system leak (muffl er, fl ange,
oxygen sensor mounting boss, etc.).
● Fuel in crankcase oil.
Code 0172
Component: Fuel System
Fault: Minimum adaptation limit exceeded
Condition: Too high pressure at high pressure fuel
line, TPS malfunction, shorted
connection, faulty sensor or fuel pump
module failure.
Conclusion: Oxygen Sensor Related
● Sensor connector or wiring.
● Sensor contaminated or damaged.
● Poor ground path.
● Pin circuit wiring or connectors.
ECU Black pin 10 or 17.
TPS Sensor Related
● Throttle plate position incorrect during
Learn procedure.
● TPS problem or malfunction.
Engine Wiring Harness Related
● Diff erence in voltage between sensed
voltage and actual sensor voltage.
● Problem in wiring harness.
● ECU-to-harness connection problem.
Systems Related
● Ignition (spark plug, plug wire, ignition
coil).
● Fuel (fuel type/quality, injector, fuel
pressure too high, fuel pump module or
lift pump).
● Combustion air (air cleaner dirty/
restricted).
● Base engine problem (rings, valves).
● Fuel in crankcase oil.
● Fuel pump module is over fi lled.
● Lift pump diaphragm is ruptured.
Содержание
- Ech630 ech749 ch735 ch26 ch745 service manual 1
- Safety 2
- Maintenance 3
- Maintenance 4
- Specifications 5
- Specifi cations 5
- Specifi cations 6
- Specifi cations 7
- Specifi cations 8
- Specifi cations 9
- Specifi cations 10
- Specifi cations 11
- Specifi cations 12
- Specifi cations 13
- Specifi cations 14
- Specifi cations 15
- Specifi cations 16
- Specifi cations 17
- Specifi cations 18
- Specifi cations 19
- Specifi cations 20
- Specifi cations 21
- Specifi cations 22
- Tools and aids 23
- Tools and aids 24
- Tools and aids 25
- Troubleshooting 26
- Troubleshooting 27
- Troubleshooting 28
- Troubleshooting 29
- Troubleshooting 30
- Air cleaner intake 31
- Efi system electronic throttle body etb ech 32
- Electronic fuel injection efi system electronic throttle body etb ech 32
- Efi system electronic throttle body etb ech 33
- Efi system electronic throttle body etb ech 34
- Efi system electronic throttle body etb ech 35
- Black connector side grey connector side ecu 36
- Efi system electronic throttle body etb ech 36
- Pinout of ecu 36
- Efi system electronic throttle body etb ech 37
- Efi system electronic throttle body etb ech 38
- Efi system electronic throttle body etb ech 39
- Efi system electronic throttle body etb ech 40
- Efi system electronic throttle body etb ech 41
- Efi system electronic throttle body etb ech 42
- Efi system electronic throttle body etb ech 43
- Efi system electronic throttle body etb ech 44
- Efi system electronic throttle body etb ech 45
- Efi system electronic throttle body etb ech 46
- Efi system electronic throttle body etb ech 47
- Efi system electronic throttle body etb ech 48
- Efi system electronic throttle body etb ech 49
- Efi system electronic throttle body etb ech 50
- Efi system electronic throttle body etb ech 51
- Efi system electronic throttle body etb ech 52
- Efi system electronic throttle body etb ech 53
- Efi system electronic throttle body etb ech 54
- Efi system electronic throttle body etb ech 55
- Efi system electronic throttle body etb ech 56
- Efi system electronic throttle body etb ech 57
- Efi system electronic throttle body etb ech 58
- 24 690 01 rev o kohlerengines com 59
- After turning key to off wait 10 seconds before turning to on to allow ecu to go to sleep 59
- Efi diagnostic flow diagram 59
- Efi system electronic throttle body etb ech 59
- Fuel pump module can be heard or a vibration can be felt to establish pump cycle fuel pump module will run for one 4 6 second cycle when ecu wakes up after being asleep 59
- Start of test 59
- Efi system electronic throttle body etb ech 60
- Efi system electronic throttle body etb ech 61
- Efi system ech 62
- Electronic fuel injection efi system ech 62
- Efi system ech 63
- Efi system ech 64
- Efi system ech 65
- Black connector side grey connector side ecu 66
- Efi system ech 66
- Pinout of ecu 66
- Efi system ech 67
- Efi system ech 68
- Efi system ech 69
- Efi system ech 70
- Efi system ech 71
- Efi system ech 72
- Efi system ech 73
- Efi system ech 74
- Efi system ech 75
- Efi system ech 76
- Efi system ech 77
- Efi system ech 78
- Efi system ech 79
- Efi system ech 80
- Efi system ech 81
- Efi system ech 82
- Efi system ech 83
- Efi system ech 84
- Efi system ech 85
- Efi system ech 86
- Efi system ech 87
- Efi system ech 88
- Efi system ech 89
- 24 690 01 rev o kohlerengines com 90
- After turning key to off wait 10 seconds before turning to on to allow ecu to go to sleep 90
- Efi diagnostic flow diagram 90
- Efi system ech 90
- Fuel pump module can be heard or a vibration can be felt to establish pump cycle fuel pump module will run for one 4 6 second cycle when ecu wakes up after being asleep 90
- Start of test 90
- Efi system bosch 91
- Electronic fuel injection efi system bosch 91
- Efi system bosch 92
- Efi system bosch 93
- Efi system bosch 94
- Efi system bosch 95
- Efi system bosch 96
- Efi system bosch 97
- Efi system bosch 98
- Efi system bosch 99
- Efi system bosch 100
- Efi system bosch 101
- Efi system bosch 102
- Efi system bosch 103
- Efi system bosch 104
- Efi system bosch 105
- Efi system bosch 106
- Efi system bosch 107
- Efi system bosch 108
- Efi system bosch 109
- Efi system bosch 110
- Efi system bosch 111
- Efi system bosch 112
- 24 690 01 rev o kohlerengines com 113
- After the problem has been corrected fault codes may be cleared as follows 1 disconnect negative battery cable from battery terminal or remove main fuse for ecu for approximately 1 minute 2 reconnect cable and tighten securely or reinstall main fuse start engine and allow it to run for several minutes mil should remain off if problem was corrected and fault codes should not reappear codes 31 32 33 and 34 may require 10 15 minutes of running to reappear following chart lists fault codes what they correspond to and what visual indications will be following chart is a list of individual codes with an explanation of what triggers them what symptoms might be expected and probable causes 113
- Diagnostic display initiated through ignition key sequencing 113
- Efi system bosch 113
- Example of diagnostic display 113
- 24 690 01 rev o kohlerengines com 114
- Efi system bosch 114
- P0261 injector 1 short circuit to ground n a n a y 114
- P0262 injector 1 short circuit to battery n a n a y 114
- P1263 injector 2 open circuit n a n a y 114
- Efi system bosch 115
- Efi system bosch 116
- Efi system bosch 117
- Efi system bosch 118
- Efi system bosch 119
- Efi system bosch 120
- Efi system bosch 121
- Efi system bosch 122
- Efi system bosch 123
- Lubrication system 124
- Lubrication system 125
- Electrical system 126
- Electrical system 127
- Electrical system 128
- Electrical system 129
- Electrical system 130
- Electrical system 131
- Electrical system 132
- Starter system 133
- Starter system 134
- Starter system 135
- Starter system 136
- Disassembly inspection and service 137
- Disassembly inspection and service 138
- Disassembly inspection and service 139
- Disassembly inspection and service 140
- Disassembly inspection and service 141
- Disassembly inspection and service 142
- Disassembly inspection and service 143
- Disassembly inspection and service 144
- Disassembly inspection and service 145
- Disassembly inspection and service 146
- Disassembly inspection and service 147
- Disassembly inspection and service 148
- Disassembly inspection and service 149
- Disassembly inspection and service 150
- Disassembly inspection and service 151
- Disassembly inspection and service 152
- Disassembly inspection and service 153
- Disassembly inspection and service 154
- Disassembly inspection and service 155
- Disassembly inspection and service 156
- Disassembly inspection and service 157
- Reassembly 158
- Reassembly 159
- Reassembly 160
- Reassembly 161
- Reassembly 162
- Reassembly 163
- Reassembly 164
- Reassembly 165
- Reassembly 166
- Reassembly 167
- Reassembly 168
- Reassembly 169
- Reassembly 170
- Reassembly 171
- Reassembly 172
- Reassembly 173
- Reassembly 174
- Reassembly 175
- Reassembly 176
- Reassembly 177
- Reassembly 178
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