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Old 01-16-2007, 08:21 AM   #1
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Default How to Check ECU Codes

Go to the passenger side of your vehicle and find the small gray plug w/ nothing plugged into it, and then stick a paper clip in it so that both wires are connected.

Put the key in the ignition and turn the car two clicks (don't actually start it) and count the number of times the light in the gauge cluster blinks.

A long blink = 10 and a short blink = 1

Code
Meaning
1
O2A - Oxygen Sensor # 1
2
O2B - Oxygen Sensor # 2
3
MAP - Manifold Absolute Pressure Sensor
4
CKP - Crank Position Sensor
5
MAP - Manifold Absolute Pressure Sensor
6
ECT - Water Temperature Sensor
7
TPS - Throttle Position Sensor
8
TDC - Top Dead Center Sensor # 1
9
CYP - Cylinder Sensor
10
IAT - Intake Air Temperature Sensor
12
EGR - Exhaust Gas Recirculation Valve
13
BARO - Atmospheric Pressure Sensor
14
IACV - Idle Air Control Valve
15
Ignition Output Signal
16
Fuel Injectors
17
VSS - Speed Sensor
19
Automatic Transmission Lockup Control Valve
20
Electrical Load Detector
21
VTEC Spool Solenoid Valve
22
VTEC Pressure Valve
23
Knock Sensor
30
Automatic Transmission A Signal
31
Automatic Transmission B Signal
36
Traction Control (JDM ECUs only)
41
Primary Oxygen Sensor Heater
43
Fuel Supply System
45
Fuel System too Rich or Lean
48
LAF - Lean Air Fuel Sensor
54
CKF - Crank Fluctuation Sensor
58
TDC - Top Dead Center Sensor # 2
61
Primary Oxygen Sensor
63
Secondary Oxygen Sensor
65
Secondary Oxygen Sensor Heater
71
Random Misfire in Cylinder 1
72
Random Misfire in Cylinder 2
73
Random Misfire in Cylinder 3
74
Random Misfire in Cylinder4
80
EGR Insufficient Flow Detected
86
ECT - Engine Coolant Temperature Circuit Range/Performance Problem
90
Evaporative Emissions Control System/Leak Detected in Fuel Tank Area
91
Fuel Tank Pressure Sensor/Low Input
92
Evaporative Emissions Control System/Insufficient Purge Flow


On OBD2 (96+) Hondas, there are more codes. Look for updates soon.

Special thanks to member VBRacer for providing this list.
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"Redline first gear, and then pop the clutch three times. Let your toe lift, then slam it into reverse.VTEC every time...."

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Last edited by 94accordex; 12-26-2007 at 01:37 AM.
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