OBD fault code library

Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.

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P1394 Glow Plug Circuit High Input Bank 2
Hyundai Ignition System High severity
P1395 Glow Plug Monitor Fault Bank 1
Hyundai Ignition System High severity
P1398 VVT Solenoid B Circuit High Input
Hyundai Ignition System High severity
P1399 Glow Plug Circuit High Side High Input
Hyundai Ignition System High severity
P1401 DMTL Performance
Hyundai Auxiliary Emissions Control Medium severity
P1404 DMTL Heater Circuit
Hyundai Auxiliary Emissions Control Medium severity
P1405 EGR Temperature Incorrect
Hyundai Auxiliary Emissions Control Medium severity
P1406 DPFE Sensor Circuit Downstream Hose
Hyundai Auxiliary Emissions Control Medium severity
P1409 EGR Vacuum Regulator Solenoid Circuit Malfunction
Hyundai Auxiliary Emissions Control Medium severity
P1411 Secondary Air Injection Downstream Flow
Hyundai Auxiliary Emissions Control Medium severity
P1414 Secondary Air Injection System Monitor Circuit High Voltage
Hyundai Auxiliary Emissions Control Medium severity
P1418 2nd Air Injection Insufficient Bank 2
Hyundai Auxiliary Emissions Control Medium severity

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