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Honda CEL Codes


CODE VEHICLE DEFINITION
1 86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra
Oxygen Sensor "A" (Primary) defective circuit or unplugged / defective sensor
2 86-87 Civic
Oxygen Sensor "B" defective circuit or unplugged / defective sensor
3 86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra
MAP Sensor (Manifold Absolute Pressure) defective circuit or unplugged / defective sensor
4 88-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra
CKP Sensor (Crankshaft Position Sensor) defective circuit or unplugged / defective sensor
5 86-98 Civic*
97-98 CRV
85-98 Prelude
94+ Integra
MAP Sensor (Manifold Absolute Pressure) mechanical problem / disconnected piping
* not 94-95
6 86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra
ECT Sensor (Engine Coolant Temperature) defective circuit or unplugged / defective sensor
7 86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra
TP Sensor (Throttle Position) defective circuit or unplugged / defective sensor
8 86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra
TDC Sensor (Top Dead Center) defective circuit or unplugged / defective sensor
9 86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra
CYP Sensor (Cylinder) defective circuit or unplugged / defective sensor
* invalid code for throttle body injection Hondas
** invalid code for V6 engines
10 86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra
IAT Sensor (Intake Air Temperature) defective circuit or unplugged / defective sensor
12 86-98 Civic
85-98 Prelude
94+ Integra
EGR Lift Sensor (Exhaust Gas Recirculation) defective circuit or unplugged / defective sensor
* invalid code for non-equipped EGR valve vehicles
13 86-98 Civic
97-98 CRV
85-98 Prelude
94+ Integra
BARO Sensor (Atmospheric Pressure) defective circuit or unplugged / defective sensor
14 88-98 Civic
97-98 CRV
88-98 Prelude
94+ Integra
IAC Valve (Idle Air Control) defective circuit or unplugged / defective sensor
15 88-95 Civic
88-95 Prelude
94+ Integra
Ignition Output Signal missing or defective ignition output signal
16 88-95 Civic
88-85 Prelude
94+ Integra
Fuel Injector System defective circuit or unplugged / defective fuel injector
17 88-98 Civic
97-98 CRV
88-98 Prelude
94+ Integra
VSS (Vehicle Speed Sensor) defective circuit or unplugged / defective sensor
19 88-95 Civic
94+ Integra
Automatic Transmission Lock Up Control Solenoid Valve defective circuit or unplugged / defective solenoid valve
20 88-98 Civic
97-98 CRV
92-98 Prelude
94+ Integra
Electrical Load Detector defective circuit or unplugged / defective sensor
21 92-95 Civic
93-95 Prelude
94+ Integra
VTEC Solenoid Valve defective circuit or unplugged / defective solenoid valve
* invalid code for non-VTEC engine
** invalid for V6 engine
22 92-98 Civic
93-98 Prelude
94+ Integra
VTEC Oil Pressure Switch defective circuit or unplugged / defective oil pressure switch
* invalid code for non-VTEC engine
23 96-98 Civic
92-98 Prelude
94+ Integra
KS (Knock Sensor) defective circuit or unplugged / defective sensor
* invalid code for V6 engine
30 92-98 Prelude
94+ Integra
Automatic Transmission Signal: "A" / SEAF / SEFA / TMA or TMB defective circuit or unplugged / defective sensor
* invalid code for 1996
31 92-95 Prelude Automatic Transmission Signal "B" defective circuit or unplugged / defective sensor
41 92-98 Civic
97-98 CRV
90-98 Prelude
94+ Integra
Primary Oxygen Sensor - Heater circuit malfunction
43 92-95 Civic
90-95 Prelude
94+ Integra
Fuel Supply System defective or malfunctioning fuel supply system
45 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
System Too Lean or Too Rich malfunction in the fuel monitoring systems
48 92-98 Civic
94+ Integra
LAF Sensor (Lean Air Fuel) defective circuit or unplugged / defective sensor
54 96-98 Civic
97-98 CRV
94+ Integra
CKF Sensor (Crankshaft Speed Fluctuation) defective circuit or unplugged / defective sensor
61 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
Oxygen Sensor, Heated - Sensor 1 (Primary) high voltage, low voltage, or slow response
63 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
Oxygen Sensor, Heated - Sensor 2 (Secondary) high voltage, low voltage, or slow response
65 96-98 Civic
97-98 CRV96-98 Prelude
94+ Integra
Oxygen Sensor Heater (Secondary) malfunctioning or defective oxygen sensor heater
67 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
Catalyst system Efficiency Below Threshold malfunctioning or defective catalyst system
70 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
Automatic Transmission malfunction with the automatic transmission controls
71 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
Cylinder 1 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
72 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
Cylinder 2 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
73 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
Cylinder 3 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
74 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
Cylinder 4 Misfire or a Random Misfire a condition is present that is creating a cylinder misfire
80 96-98 Civic
96-98 Prelude
94+ Integra
Exhaust Gas Recirculation insufficient flow detected
86 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
ECT Sensor (Engine Coolant Temperature) circuit range / performance problem
90 96-98 Civic
97-98 Prelude
94+ Integra
Evaporative Emission Control System leak detected in the fuel tank area
91 96-98 Civic
97-98 Prelude
94+ Integra
Fuel Tank Pressure Sensor low input
92 96-98 Civic
97-98 CRV
96-98 Prelude
94+ Integra
Evaporative Emission Control System insufficient purge flow



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