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2003 Hyundai Sonata GLS 2.7L Poor Idle Quality, Misfire, MIL Lamp on
Posted to Asian Driveability on 9/3/2014 14 Replies

This car had same symptoms a year ago. All cylinders indicate misfire. Car was returned this year but while codes were present, motor ran well, reset MIL status and after a few days the problem reoccurred, vehicle was returned but still runs fine. Are EVAP val...

14 Replies Received (View Replies)

  Related Documents & Media  2003 Hyundai Sonata GLS

 
Message Closed w/FIX

car Vehicle Data

2003 Hyundai Sonata GLS

VIN KMHWF35H93
Engine2.7 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIntermittently

Trouble Codes

P0166Throttle Position Sensor 2 Circuit Low
P0301Cylinder 1 Misfire Detected
P0302Cylinder 2 Misfire Detected
P0303Cylinder 3 Misfire Detected
P0304Cylinder 4 Misfire Detected
P1167Air Fuel Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

2003 Hyundai Sonata GLS

VIN KMHWF35H93
Engine2.7 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursIntermittently

Trouble Codes

P0166Throttle Position Sensor 2 Circuit Low
P0301Cylinder 1 Misfire Detected
P0302Cylinder 2 Misfire Detected
P0303Cylinder 3 Misfire Detected
P0304Cylinder 4 Misfire Detected
P1167Air Fuel Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction