Kia_Sephia_Rio_Spectra_Optima_1998-2006

TroubleCodes (42 of 130)

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2.0L L4 - Auto



Trouble Code: P2237

HO2S Pumping Current Circuit/Open Bank 1, Sensor 1

Trouble Code Conditions: Open circuit of front HO2S circuit. No relevant failure.

Possible Causes:



Contact resistance in connectors
 
Open or short to ground in HO2S circuit
 
Front HO2S sensor
 

Trouble Code: P2243

HO2S Reference Voltage Circuit/Open Bank 1, Sensor 1

Trouble Code Conditions: Open circuit of front HO2S circuit. No relevant failure.

Possible Causes:



Contact resistance in connectors
 
Open or short to ground in HO2S circuit
 
Front HO2S sensor
 

Trouble Code: P2251

HO2S Reference Ground Circuit/Open Bank 1, Sensor 1

Trouble Code Conditions: Open circuit of front HO2S circuit. No pump current malfunction.

Possible Causes:



Contact resistance in connectors
 
Open or short to ground in HO2S circuit
 
Front HO2S sensor
 

Trouble Code: P2270

HO2S Signal Stuck Rich (Bank 1 Sensor 2)

Trouble Code Conditions: Plausibility check during shift of lambda set point to rich from lean. No fuel cut off. No full load phase. No fuel trim error detected. Delay time to start diagnosis: 13 to 30 seconds. No relevant failure.

Possible Causes:



Three way catalytic converter (TWC)
 
Air leakage in exhaust system
 
Faulty rear HO2S sensor
 

Trouble Code: P2271

O2 Signal Stuck Rich (Bank 1/2 Sensor 1)

Trouble Code Conditions: Plausibility check during shift of lambda set point to rich from lean. No fuel cut off. No full load phase. No fuel trim error detected. Delay time to start diagnosis: 13 to 30 seconds. No relevant failure.

Possible Causes:



Three way catalytic converter (TWC)
 
Air leakage in exhaust system
 
Faulty rear HO2S sensor
 

Trouble Code: P2414

HO2S Exhaust Sample Error Bank 1 Sensor 1

Trouble Code Conditions: Sensor not mounted. Plausibility check in part load or full load conditions. Sensor tip temperature 1202 degrees F. Part load or full load. No relevant failure.

Possible Causes:



Incorrect installation of HO2S sensor
 
Contact resistance in connectors
 

Trouble Code: P2626

HO2S Pumping Current Trim Circuit Open Bank 1 Sensor 1

Trouble Code Conditions: Check open circuit of front HO2S sensor.

Possible Causes:



Contact resistance in connectors
 
Open or short to ground in HO2S circuit
 
Faulty canister
 
Faulty front HO2S sensor
 

 
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