Hyundai Santa Fe 2001-05

2.7L V6 - Std 2

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Trouble Code: P0171



Fuel System Too Lean (Bank 1)

Possible Causes:



Air leaks after the MAF sensor, or in the EGR or PCV system
 
Base engine "mechanical" fault affecting one or more cylinders
 
Exhaust leaks located in front of the A/FS or HO2S location
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Fuel delivery system supplying too little fuel during cruise or idle periods (e.g., faulty fuel pump or dirty, restricted fuel filter)
 
Fuel injector (one or more) dirty or pressure regulator has failed
 
HO2S is contaminated, deteriorated or it has failed
 
Vehicle driven low on fuel or until it ran out of fuel
 

Trouble Code: P0172



Fuel System Too Rich (Bank 1)

Possible Causes:



Base engine "mechanical" fault affecting one or more cylinders
 
EVAP system component has failed or canister fuel saturated
 
Exhaust leaks located in front of the HO2S location
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAF)
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
Fuel injector(s) is leaking or stuck partially open (one or more)
 
HO2S is contaminated, deteriorated or it has failed
 

Trouble Code: P0173



Fuel Trim Too Rich or Too Lean (Bank 2)

Possible Causes:



Base engine "mechanical" fault affecting one or more cylinders
 
EVAP system component has failed or canister fuel saturated
 
Exhaust leaks located in front of the HO2S location
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAF)
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
Fuel injector(s) is leaking or stuck partially open (one or more)
 
HO2S is contaminated, deteriorated or it has failed
 

Trouble Code: P0174



Fuel System Too Lean (Bank 2)

Possible Causes:



Air leaks after the MAF sensor, or in the EGR or PCV system
 
Base engine "mechanical" fault affecting one or more cylinders
 
Exhaust leaks located in front of the A/FS or HO2S location
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAP)
 
Fuel delivery system supplying too little fuel during cruise or idle periods (e.g., faulty fuel pump or dirty, restricted fuel filter)
 
Fuel injector (one or more) dirty or pressure regulator has failed
 
HO2S is contaminated, deteriorated or it has failed
 
Vehicle driven low on fuel or until it ran out of fuel
 

Trouble Code: P0175



Fuel System Too Rich (Bank 2)

Possible Causes:



Base engine "mechanical" fault affecting one or more cylinders
 
EVAP system component has failed or canister fuel saturated
 
Exhaust leaks located in front of the HO2S location
 
Fuel control sensor is out of calibration (i.e., ECT, IAT or MAF)
 
Fuel delivery system supplying too much fuel during cruise or idle periods (e.g., faulty fuel pump, or faulty pressure regulator)
 
Fuel injector(s) is leaking or stuck partially open (one or more)
 
HO2S is contaminated, deteriorated or it has failed
 

Trouble Code: P0201



Fuel Injector 1 Circuit Malfunction

Possible Causes:



Injector 1 control circuit open or grounded
 
Injector 1 control circuit shorted to system power
 
Injector 1 power (B+) circuit open
 
Injector 1 damaged or has failed
 
PCM has failed
 

Trouble Code: P0202



Fuel Injector 2 Circuit Malfunction

Possible Causes:



Injector 2 control circuit open or grounded
 
Injector 2 control circuit shorted to system power
 
Injector 2 power (B+) circuit open
 
Injector 2 damaged or has failed
 
PCM has failed
 

Trouble Code: P0203



Fuel Injector 3 Circuit Malfunction

Possible Causes:



Injector 3 control circuit open or grounded
 
Injector 3 control circuit shorted to system power
 
Injector 3 power (B+) circuit open
 
Injector 3 damaged or has failed
 
PCM has failed
 

Trouble Code: P0204



Fuel Injector 4 Circuit Malfunction

Possible Causes:



Injector 4 control circuit open or grounded
 
Injector 4 control circuit shorted to system power
 
Injector 4 power (B+) circuit open
 
Injector 4 damaged or has failed
 
PCM has failed
 

Trouble Code: P0205



Fuel Injector 5 Circuit Malfunction

Possible Causes:



Injector 5 control circuit open or grounded
 
Injector 5 control circuit shorted to system power
 
Injector 5 power (B+) circuit open
 
Injector 5 damaged or has failed
 
PCM has failed
 

Trouble Code: P0206



Fuel Injector 6 Circuit Malfunction

Possible Causes:



Injector 6 control circuit open or grounded
 
Injector 6 control circuit shorted to system power
 
Injector 6 power (B+) circuit open
 
Injector 6 damaged or has failed
 
PCM has failed
 

Trouble Code: P0230



Fuel Pump Circuit Malfunction

Possible Causes:



Fuel pump control circuit is open or shorted to ground
 
Fuel pump relay power circuit from ignition switch is open
 
Fuel pump relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P0300



Multiple Misfire Detected

Possible Causes:



Ignition system or fuel metering fault in 2 or more cylinders
 
Fuel pressure too low or too high, fuel supply contaminated
 
CKP/CMP signals, EVAP canister saturated, EGR valve stuck
 

Trouble Code: P0301



Cylinder 1 Misfire Detected

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (i.e., a coil) that affects only one cylinder
 

Trouble Code: P0302



Cylinder 2 Misfire Detected

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (i.e., a coil) that affects only one cylinder
 

Trouble Code: P0303



Cylinder 3 Misfire Detected

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (i.e., a coil) that affects only one cylinder
 

Trouble Code: P0304



Cylinder 4 Misfire Detected

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (i.e., a coil) that affects only one cylinder
 

Trouble Code: P0305



Cylinder 5 Misfire Detected

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (i.e., a coil) that affects only one cylinder
 

Trouble Code: P0306



Cylinder 6 Misfire Detected

Possible Causes:



Base engine mechanical fault that affects only one cylinder
 
Fuel metering fault that affects only one cylinder
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (i.e., a coil) that affects only one cylinder
 

Trouble Code: P0320



Ignition Failure Sensor Circuit Malfunction

Possible Causes:



Ignition failure sensor circuit is open or shorted to ground
 
Ignition failure sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0325



Knock Sensor 1 Circuit Malfunction

Possible Causes:



KS signal circuit is open, shorted to ground or to system power
 
KS ground circuit is open between sensor and PCM
 
Knock sensor is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0326



Knock Sensor 2 Range/Performance

Possible Causes:



KS signal circuit is open, shorted to ground or to system power
 
Knock sensor is damaged or it has failed (an intermittent fault)
 
PCM has failed
 

Trouble Code: P0330



Knock Sensor 2 Circuit Malfunction

Possible Causes:



KS signal circuit is open, shorted to ground or to system power
 
KS ground circuit is open between sensor and PCM
 
Knock sensor is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0335



Crankshaft Position Sensor 'A' Circuit Malfunction

Possible Causes:



CKP (Magnetic) sensor signal (+) or (-) circuit is open or shorted to ground between the sensor and the PCM
 
CKP (Magnetic) sensor signal is damaged or has failed
 
PCM has failed
 

Trouble Code: P0336



Crankshaft Position Sensor Performance

Possible Causes:



CKP sensor signal is open or shorted to ground (Intermittent)
 
CKP sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0340



Camshaft Position Sensor Circuit Malfunction

Possible Causes:



CMP (Resistor) sensor signal circuit open or shorted to ground
 
CMP (Resistor) sensor ground circuit is open
 
CMP (Resistor) sensor power circuit open (test power to relay)
 
CMP (Resistor) sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0342



Camshaft Position Sensor Low Input

Possible Causes:



CMP (Hall) sensor signal circuit is open or shorted (intermittent)
 
CMP (Hall) sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0343



Camshaft Position Sensor High Input

Possible Causes:



CMP (Hall) sensor signal circuit is open or shorted to ground
 
CMP (Hall) sensor ground circuit is open
 
CMP (Hall) sensor power circuit is open (check fuse in the I/P)
 
CMP (Hall) sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0350



Ignition Coil Primary or Secondary Circuit Malfunction

Possible Causes:



Ignition Coil 1, 2 or 3 primary/secondary circuit open or shorted
 
Ignition Coil power circuit is open (test power from the relay)
 
Ignition Coil 1, 2 or 3 is damaged or has failed
 
PCM has failed
 

Trouble Code: P0351



Ignition Coil 'A' Circuit Malfunction

Possible Causes:



Ignition Coil 'A' primary circuit is open or shorted to ground
 
Ignition Coil 'A' power circuit is open (test power from I/P fuse)
 
Ignition Coil 'A' is damaged or has failed
 
PCM has failed
 

Trouble Code: P0352



Ignition Coil 'B' Circuit Malfunction

Possible Causes:



Ignition Coil 'B' primary circuit is open or shorted to ground
 
Ignition Coil 'B' power circuit is open (test power from I/P fuse)
 
Ignition Coil 'B' is damaged or has failed
 
PCM has failed
 

Trouble Code: P0353



Ignition Coil 'C' Circuit Malfunction

Possible Causes:



Ignition Coil 'C' primary circuit is open or shorted to ground
 
Ignition Coil 'C' power circuit is open (test power from I/P fuse)
 
Ignition Coil 'C' is damaged or has failed
 
PCM has failed
 

Trouble Code: P0354



Ignition Coil 'D' Circuit Malfunction

Possible Causes:



Ignition Coil 'D' primary circuit is open or shorted to ground
 
Ignition Coil 'D' power circuit is open (test power from I/P fuse)
 
Ignition Coil 'D' is damaged or has failed
 
PCM has failed
 

Trouble Code: P0355



Ignition Coil 'E' Circuit Malfunction

Possible Causes:



Ignition Coil 'E' primary circuit is open or shorted to ground
 
Ignition Coil 'E' power circuit is open (test power from I/P fuse)
 
Ignition Coil 'E' is damaged or has failed
 
PCM has failed
 

Trouble Code: P0356



Ignition Coil 'F' Circuit Malfunction

Possible Causes:



Ignition Coil 'F' primary circuit is open or shorted to ground
 
Ignition Coil 'F' power circuit is open (test power from I/P fuse)
 
Ignition Coil 'F' is damaged or has failed
 
PCM has failed
 

Trouble Code: P0401



EGR System Malfunction

Possible Causes:



EGR vacuum hose to source vacuum is loose or disconnected
 
EGR exhaust tube is clogged or restricted
 
EGR valve assembly or solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0403



EGR Solenoid Circuit Malfunction

Possible Causes:



EGR solenoid control circuit is open or shorted to ground
 
EGR solenoid control circuit is shorted to system power (B+)
 
EGR solenoid power circuit is open (check power to I/P fuse)
 
EGR solenoid is damaged or has failed
 

Trouble Code: P0420



Catalyst Efficiency Below Normal (Bank 1)

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is contaminated, damaged or has failed
 
Front HO2S is older (aged) than the rear HO2S (HO2S is lazy)
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 

Trouble Code: P0421



Warm up Catalyst Efficiency Below Normal (Bank 1)

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is contaminated, damaged or has failed
 
Front HO2S is older (aged) than the rear HO2S (HO2S is lazy)
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 

Trouble Code: P0430



Catalyst Efficiency Below Normal (Bank 2)

Possible Causes:



Air leaks at the exhaust manifold or in the exhaust pipes
 
Catalytic converter is contaminated, damaged or has failed
 
Front HO2S is older (aged) than the rear HO2S (HO2S is lazy)
 
Front HO2S or rear HO2S is contaminated with fuel or moisture
 

 
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