2001 Hyundai Elantra engine check light on

TGILL

MEMBER
2001 HYUNDAI ELANTRA

Engine Mechanical problem
2001 Hyundai Elantra 4 cyl Automatic 182800 miles

My car engine check light was on.I got fixed from mechanic. He cleared the check light. The mechanic computer showed sensor code. He cleared light for me. But I wana ask what was the meaning of that sensor code that his computer showed. What would be the problem. What should I do if check light comes again.

1 Reply

MERLIN2021

MECHANIC
17,250 POSTS

We would need you to post the code the scantool read! With you posting the code, it's impossible to say, there are MANY codes, the ones that turn on the MIL are emmission related and begin with the letter "P". This is just a small section of the codes, they run into the 1600's!
HYUNDAI OBD II DIAGNOSTIC TROUBLE CODES P0100. Mass or Volume Air Flow Circuit Malfunction P0101. Mass or Volume Air Flow Circuit Range/Performance Problem P0102. Mass or Volume Air Flow Circuit Low Input P0103. Mass or Volume Air Flow Circuit High Input P0104. Mass or Volume Air Flow Circuit Intermittent P0105. Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction P0106. Manifold Absolute Pressure/Barometric Pressure Circuit P0107. Manifold Absolute Pressure/Barometric Pressure Circuit Low Input P0108. Manifold Absolute Pressure/Barometric Pressure Circuit High Input P0109. Manifold Absolute Pressure/Barometric Pressure Circuit Intermittent P0109. Intake Air Temperature Circuit Malfunction P0111. Intake Air Temperature Circuit Range/Performance Problem P0112. Intake Air Temperature Circuit Low Input P0113. Intake Air Temperature Circuit High Input P0114. Intake Air Temperature Circuit Intermittent P0115. Engine Coolant Temperature Circuit Malfunction P0116. Engine Coolant Temperature Circuit Range/Performance Problem P0117. Engine Coolant Temperature Circuit Low Input P0118. Engine Coolant Temperature Circuit High Input P0119. Engine Coolant Temperature Circuit Intermittent P0120. Throttle/Petal Position Sensor/Switch A Circuit Malfunction P0121. Throttle/Petal Position Sensor/Switch A Circuit Range/Performance
P0122. Throttle/Petal Position Sensor/Switch A Circuit Low Input P0123. Throttle/Petal Position Sensor/Switch A Circuit High Input P0124. Throttle/Petal Position Sensor/Switch A Circuit Intermittent P0125. Insufficient Coolant Temperature for Closed Loop Fuel Control P0126. Insufficient Coolant Temperature for Stable Operation P0130.O2 Sensor Circuit Malfunction (Bank 1 Sensor 1) P0131.O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1) P0132.O2 Sensor Circuit High Voltage (Bank 1 Sensor 1) P0133.O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) P0134.O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)