JPS5647805A - Self-diagnostic method of air fuel ratio control unit - Google Patents

Self-diagnostic method of air fuel ratio control unit

Info

Publication number
JPS5647805A
JPS5647805A JP12385779A JP12385779A JPS5647805A JP S5647805 A JPS5647805 A JP S5647805A JP 12385779 A JP12385779 A JP 12385779A JP 12385779 A JP12385779 A JP 12385779A JP S5647805 A JPS5647805 A JP S5647805A
Authority
JP
Japan
Prior art keywords
self
fuel ratio
air fuel
ratio control
diagnosis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP12385779A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0114528B2 (enrdf_load_stackoverflow
Inventor
Osamu Abe
Toshio Ishii
Yasunori Mori
Taiji Hasegawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12385779A priority Critical patent/JPS5647805A/ja
Publication of JPS5647805A publication Critical patent/JPS5647805A/ja
Publication of JPH0114528B2 publication Critical patent/JPH0114528B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Of Engines (AREA)
  • Testing And Monitoring For Control Systems (AREA)
JP12385779A 1979-09-28 1979-09-28 Self-diagnostic method of air fuel ratio control unit Granted JPS5647805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12385779A JPS5647805A (en) 1979-09-28 1979-09-28 Self-diagnostic method of air fuel ratio control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12385779A JPS5647805A (en) 1979-09-28 1979-09-28 Self-diagnostic method of air fuel ratio control unit

Publications (2)

Publication Number Publication Date
JPS5647805A true JPS5647805A (en) 1981-04-30
JPH0114528B2 JPH0114528B2 (enrdf_load_stackoverflow) 1989-03-13

Family

ID=14871104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12385779A Granted JPS5647805A (en) 1979-09-28 1979-09-28 Self-diagnostic method of air fuel ratio control unit

Country Status (1)

Country Link
JP (1) JPS5647805A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253512A (ja) * 1985-05-02 1986-11-11 Nippon Denso Co Ltd 車載用制御装置の自己診断装置
JPS61268847A (ja) * 1985-05-21 1986-11-28 Nippon Denso Co Ltd 内燃機関の制御装置
JPS63273037A (ja) * 1987-04-30 1988-11-10 Yanmar Diesel Engine Co Ltd 機関の故障診断装置
JPS6418804A (en) * 1987-07-14 1989-01-23 Diesel Kiki Co Self-diagnosis device for controller
US4839811A (en) * 1986-09-22 1989-06-13 Nissan Motor Company Limited Automotive vehicle trouble checking apparatus
JPH0233446A (ja) * 1988-07-22 1990-02-02 Hitachi Ltd エンジン制御装置診断システム

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH041451A (ja) * 1990-04-17 1992-01-06 Mitsubishi Electric Corp エンジンの故障診断装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253512A (ja) * 1985-05-02 1986-11-11 Nippon Denso Co Ltd 車載用制御装置の自己診断装置
JPS61268847A (ja) * 1985-05-21 1986-11-28 Nippon Denso Co Ltd 内燃機関の制御装置
US4839811A (en) * 1986-09-22 1989-06-13 Nissan Motor Company Limited Automotive vehicle trouble checking apparatus
JPS63273037A (ja) * 1987-04-30 1988-11-10 Yanmar Diesel Engine Co Ltd 機関の故障診断装置
JPS6418804A (en) * 1987-07-14 1989-01-23 Diesel Kiki Co Self-diagnosis device for controller
JPH0233446A (ja) * 1988-07-22 1990-02-02 Hitachi Ltd エンジン制御装置診断システム

Also Published As

Publication number Publication date
JPH0114528B2 (enrdf_load_stackoverflow) 1989-03-13

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