Engine Diagnostic Codes (P0XXX)
Complete list of engine diagnostic trouble codes (P0XXX). Browse powertrain codes for engine, transmission, and emission control systems.
Popular Engine Codes
Complete Engine Codes Index
Browse all available engine diagnostic trouble codes (P0XXX) organized by system:
Showing codes 1001-1100 of 4123 total codes
P03XX Engine Control System
P03E8
The P03E8 code indicates a misfire in cylinder 3 of your engine.
P03E9
P03E9 indicates a performance issue with the fuel injector in cylinder 7.
P03EA
P03EA indicates a high voltage issue in the fuel injector circuit.
P03EB
The P03EB code indicates an issue with the fuel injection system,
P03EC
P03EC indicates a problem with the fuel injector control circuit,
P03ED
P03ED indicates a misfire detected in cylinder 5 of your engine.
P03EE
DTC P03EE indicates a misfire related to the fuel system or air-fuel ratio.
P03EF
DTC P03EF indicates an engine misfire detection issue.
P03F0
P03F0 indicates a high voltage issue in the fuel injector circuit.
P03F1
P03F1 indicates that cylinder 3 is not contributing power as expected.
P03F2
P03F2 indicates that the fuel injection timing for cylinder 2 is occurring to...
P03F3
P03F3 indicates a cylinder 3 misfire, affecting engine performance.
P03F4
DTC P03F4 indicates a fuel injector issue in cylinder four, affecting engine ...
P03F5
DTC P03F5 refers to a malfunction in the fuel injector circuit for cylinder 5.
P03F6
P03F6 indicates a misfire in cylinder 6 of your engine.
P03F7
P03F7 indicates a misfire in cylinder 7, affecting engine performance.
P03F8
DTC P03F8 refers to a high input signal from the fuel injector circuit,
P03F9
DTC P03F9 indicates a misfire in cylinder 2, likely affecting engine performa...
P03FA
P03FA indicates a problem with the fuel rail pressure sensor, affecting fuel ...
P03FB
Indicates a performance issue with the fuel injection system of your vehicle.
P03FC
P03FC indicates a fuel delivery issue related to the fuel injector circuit on...
P03FD
P03FD indicates a low voltage issue in the fuel injector circuit for cylinder 4.
P03FE
The P03FE code indicates a malfunction related to fuel injector performance,
P03FF
P03FF indicates a fuel pressure regulator performance issue, affecting fuel d...
P04XX Engine Control System
P0400
P0400 indicates a malfunction in the EGR system's exhaust flow.
P0401
P0401 means your vehicle's EGR system is not recirculating enough exhaust gas.
P0402
P0402 means excessive EGR flow detected, which can affect engine performance ...
P0403
P0403 indicates a malfunction in the EGR control circuit, affecting emissions...
P0404
P0404 means there is an issue with the EGR system's flow performance.
P0405
The P0405 code signals a low input from the EGR sensor, affecting emissions c...
P0406
Indicates a problem with the Exhaust Gas Recirculation (EGR) system in your v...
P0407
P0407 indicates a low voltage signal from the EGR sensor, affecting emissions...
P0408
P0408 indicates a high voltage in the EGR sensor circuit.
P0409
P0409 indicates a problem with the EGR sensor's range or performance.
P040A
The P040A code indicates a malfunction in the EGR temperature sensor circuit,...
P040B
P040B indicates an EGR sensor performance issue, which may affect engine effi...
P040C
P040C indicates a malfunction in the EGR system related to performance.
P040D
P040D indicates an issue with the EGR position sensor performance,
P040E
P040E indicates a malfunction in the EGR system, affecting emissions and engi...
P040F
P040F indicates a performance issue with the EGR system.
P0410
P0410 indicates a malfunction in the secondary air injection system,
P0411
P0411 means there's an issue with the secondary air injection system's flow.
P0412
P0412 signifies a fault in the secondary air injection system's switching valve.
P0413
P0413 indicates an issue with the secondary air injection system,
P0414
P0414 indicates a malfunction in the secondary air injection system switch ci...
P0415
Indicates a problem with the secondary air injection system control circuit.
P0416
P0416 indicates a malfunction in the secondary air injection system.
P0417
P0417 indicates a problem with the secondary air injection system's switching...
P0418
P0418 indicates a malfunction in the secondary air injection system control c...
P0419
DTC P0419 refers to a performance problem with the secondary air injection sy...
P041A
Indicates a malfunction in the secondary air injection system.
P041B
The P041B code indicates a problem with the secondary air injection system pe...
P041C
P041C indicates a malfunction in the secondary air injection system,
P041D
P041D signals a problem with the secondary air injection system,
P041E
P041E indicates a malfunction in the secondary air injection system.
P041F
P041F indicates an issue with the secondary air injection system,
P0420
P0420 indicates a problem with the catalytic converter's efficiency.
P0421
P0421 indicates that the catalytic converter's efficiency is below the expect...
P0422
P0422 means low efficiency of the catalytic converter.
P0423
P0423 indicates an issue with the catalytic converter temperature sensor circ...
P0424
DTC P0424 indicates that the catalytic converter is not working efficiently,
P0425
P0425 indicates a problem with the oxygen sensor heater circuit.
P0426
DTC P0426 signifies a performance issue with the catalyst temperature sensor.
P0427
DTC P0427 indicates a problem with the catalytic converter temperature sensor.
P0428
P0428 indicates an issue with the heated catalytic converter's temperature se...
P0429
P0429 means the catalytic converter is not working efficiently.
P042A
Indicates a problem with your vehicle's catalytic converter or exhaust system.
P042B
P042B indicates that the catalytic converter temperature is below expected le...
P042C
P042C indicates low efficiency in the catalytic converter, impacting emissions.
P042D
DTC P042D means your catalytic converter is not operating efficiently.
P042E
P042E means the catalytic converter's efficiency is below the expected thresh...
P042F
Indicates the vehicle is not meeting emissions standards.
P0430
P0430 means the catalytic converter on Bank 2 is not performing efficiently.
P0431
P0431 means the catalytic converter is underperforming, impacting emissions c...
P0432
P0432 signifies a catalytic converter efficiency issue on bank 2.
P0433
P0433 indicates a problem with the efficiency of the catalytic converter.
P0434
P0434 indicates low efficiency in the catalytic converter on Bank 1.
P0435
P0435 indicates a problem with the heater circuit of the catalytic converter,...
P0436
P0436 means there's a problem with the catalytic converter temperature sensor...
P0437
P0437 indicates a problem with the catalytic converter temperature sensor cir...
P0438
P0438 means there's an issue with the oxygen sensor heater circuit.
P0439
P0439 signifies a malfunction in the catalytic converter's heater circuit,
P043A
The P043A code indicates a problem with the exhaust gas temperature sensor,
P043B
DTC P043B indicates an efficiency problem with the bank 1 catalytic converter.
P043C
DTC P043C indicates a problem with the catalytic converter's efficiency.
P043D
The P043D code signifies catalytic converter efficiency issues in your vehicl...
P043E
P043E indicates a performance issue with the exhaust gas temperature sensor c...
P043F
P043F indicates an issue with the efficiency of the catalytic converter on ba...
P0440
P0440 indicates a malfunction in the EVAP system, which controls fuel vapor e...
P0441
DTC P0441 indicates an incorrect purge flow in the EVAP system,
P0442
P0442 indicates a small leak in the EVAP system, affecting emissions control.
P0443
P0443 indicates a problem with the purge control valve in the EVAP system.
P0444
P0444 indicates an open circuit in the EVAP purge control valve,
P0445
P0445 indicates a short in the EVAP vent control circuit, affecting vehicle e...
P0446
DTC P0446 signifies a problem in the EVAP vent control circuit.
P0447
P0447 indicates an issue with the EVAP vent circuit, affecting emissions cont...
P0448
P0448 indicates an issue with the EVAP vent control circuit, often linked to ...
P0449
The P0449 code indicates a problem with the EVAP vent control circuit,
P044A
P044A indicates a performance issue in the Evaporative Emission Control System.
P044B
P044B means there's a problem in the EVAP system's vent valve control circuit...
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