Hyundai Car 1999-05

2.4L L4 - Std 5

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Trouble Code: P2122



Throttle/Pedal Position Sensor/Switch -D- Circuit Low Input

Possible Causes:



Poor connector
 
Faulty APS1
 
Open or short in APS1 circuit
 
Faulty PCM
 

Trouble Code: P2123



Throttle/Pedal Position Sensor/Switch -D- Circuit High Input

Possible Causes:



Poor connector
 
Faulty APS1
 
Open or short in APS1 circuit
 
Faulty PCM
 

Trouble Code: P2138



Throttle/Pedal Position Sensor/Switch -D/E- Voltage Correlation

Possible Causes:



Poor connection
 
Faulty APS
 
Faulty PCM
 

Trouble Code: P2187



Fuel Trim Malfunction System Too Lean At Idle (Additive)

Possible Causes:



Faulty ignition system
 
EVAP PCSV malfunction
 
Faulty fuel injectors
 
Leak in exhaust system
 
Faulty MAP, TPS, ECTS
 
Faulty front HO2S
 
Faulty PCM
 

Trouble Code: P2188



System Too Rich At Idle (Bank 1)

Possible Causes:



Faulty ignition system
 
EVAP PCSV malfunction
 
Faulty fuel injectors
 
Leak in exhaust system
 
Faulty MAP, TPS, ECTS
 
Faulty front HO2S
 
Faulty PCM
 

Trouble Code: P2191



System Too Lean At Higher Load (Multiple) (Bank 1)

Possible Causes:



Faulty ignition system
 
EVAP PCSV malfunction
 
Faulty fuel injectors
 
Leak in exhaust system
 
Faulty MAP, TPS, ECTS
 
Faulty front HO2S
 
Faulty PCM
 

Trouble Code: P2422



Evaporative Emission System Canister Clogging

Possible Causes:



Blockage of canister filter
 
Faulty CCV
 
Faulty canister
 
Faulty fuel cut valve
 

 
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