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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P1419 Split Air 2 Circuit Malfunction
Nissan Auxiliary Emissions Control Medium severity
P1420 Catalyst Temperature Sensor Failure
Nissan Auxiliary Emissions Control High severity
P1421 Cold Start Control
Nissan Auxiliary Emissions Control High severity
P1423 EGI Functionality Test Failed
Nissan Auxiliary Emissions Control Medium severity
P1424 EGI Glow Plug Primary Failure
Nissan Ignition System High severity
P1427 EGI Mini MAF Failed Short Circuit
Nissan Fuel and Air Metering High severity
P1428 EGI Mini MAF Failed Open Circuit
Nissan Fuel and Air Metering High severity
P1432 Thermostat Heater Control Circuit Failure
Nissan Fuel and Air Metering High severity
P1433 A/C Refrigerant Temperature Circuit Low
Nissan Auxiliary Emissions Control High severity
P1436 A/C Evaporator Air Temperature Circuit Low
Nissan Auxiliary Emissions Control High severity
P1437 A/C Evaporator Air Temperature Circuit High
Nissan Auxiliary Emissions Control High severity
P1440 Evaporative Emission Control System, Small Leak
Nissan Auxiliary Emissions Control Low severity

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