no ecu code
Thread Starter
|
HCF Member
Joined: Aug 2006
Posts: 82
From:
no ecu code
my friend has a 96' civic dx. long story short he has a check engine light and after going to 2 seperate places, neither can retrieve the error code. does anyone have any ideas what this could mean? he was told, and these were just guesses, that the ecu was fried.
HCF Member
Joined: Jan 2005
Posts: 8,519
From: South Central
RE: no ecu code
Locate the factory diagnostic plug located next to the Ecu,A two pin connector contains a brown and black wire. Jump the two tires together and put the ignition in the "on" position. Watch the light then check the flash code chart below.
0 ECU
1 Oxygen Sensor
3 Map Sensor
5 Map Sensor
6 Crank Angle
7 Throttle Angle
8 TDC Position
9 No. 1 Cylinder Position
10 Intake Air Temperature
12 Exhaust Gas Reiculation (EGR) System
13 Atmospheric Pressure
14 Electronic Air Control
15 Ignition Output Signal
16 Fuel Injector
17 Vehicle Speed Sensor
20 Electronic Load Detector
22 Vtec System Malfunction
23 Knock Sensor
41 o2 Sensor
43 Fuel Supply System
45 System Too Rich or Too Lean
48 Primary Heated o2 Sensor
54 Crankshaft Speed Fluctuation Sensor
61 Primary o2 Sensor Circuit
63 Secondary o2 Sensor Circuit
67 Catalyst Sytem
70 Automatic Transaxle
71-74 Random Misfire
80 Exhaust Gas Recirculation
86 Engine Coolant Temperature Circuit
90 Evaporative Emission Control System Leak Detected
91 Fuel Tank Pressure Circuit
92 Evaporative Emission Control System Insufficient
0 ECU
1 Oxygen Sensor
3 Map Sensor
5 Map Sensor
6 Crank Angle
7 Throttle Angle
8 TDC Position
9 No. 1 Cylinder Position
10 Intake Air Temperature
12 Exhaust Gas Reiculation (EGR) System
13 Atmospheric Pressure
14 Electronic Air Control
15 Ignition Output Signal
16 Fuel Injector
17 Vehicle Speed Sensor
20 Electronic Load Detector
22 Vtec System Malfunction
23 Knock Sensor
41 o2 Sensor
43 Fuel Supply System
45 System Too Rich or Too Lean
48 Primary Heated o2 Sensor
54 Crankshaft Speed Fluctuation Sensor
61 Primary o2 Sensor Circuit
63 Secondary o2 Sensor Circuit
67 Catalyst Sytem
70 Automatic Transaxle
71-74 Random Misfire
80 Exhaust Gas Recirculation
86 Engine Coolant Temperature Circuit
90 Evaporative Emission Control System Leak Detected
91 Fuel Tank Pressure Circuit
92 Evaporative Emission Control System Insufficient
HCF Member
Joined: Jan 2005
Posts: 8,519
From: South Central
RE: no ecu code
also note, to read the flashes you do this.
say it flashes4 times like flash-flash-flash-flash then there is a pause then it flashes 5 times so you have flash-flash-flash-flash-pause-flash-flash-flash-flash-flash it is a code 45 which is o2 sensor. any problems let me know, there there is a code on the ecu it will flash
say it flashes4 times like flash-flash-flash-flash then there is a pause then it flashes 5 times so you have flash-flash-flash-flash-pause-flash-flash-flash-flash-flash it is a code 45 which is o2 sensor. any problems let me know, there there is a code on the ecu it will flash
