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

P0100

Mass Air Flow Circuit

Mass or Volume Air Flow Circuit malfunction

P0171

System Too Lean (Bank 1)

System too Lean (Bank 1)

P0300

Random/Multiple Cylinder Misfire

Random/Multiple Cylinder Misfire Detected

P0420

Catalyst System Efficiency

Catalyst System Efficiency Below Threshold (Bank 1)

P0442

EVAP System Leak

Evaporative Emission Control System Leak Detected (small leak)

Complete Engine Codes Index

Browse all available engine diagnostic trouble codes (P0XXX) organized by system:

Showing codes 9001-9100 of 12293 total codes

P23XX Engine Control System

P2328
DTC P2328 indicates a high voltage in the ignition coil control circuit,
P2329
P2329 indicates a high voltage condition in the ignition coil 'D' primary cir...
P232A
P232A indicates a fault in the ignition coil control circuit, affecting engin...
P232B
DTC P232B indicates a high voltage issue in the ignition coil control circuit.
P232C
DTC P232C indicates a problem with ignition coil performance, particularly in...
P232D
Indicates there's a high voltage detected in the ignition coil control circuit.
P232E
DTC P232E indicates a high voltage signal in the ignition coil A control circ...
P232F
P232F indicates a malfunction in the ignition coil circuit, affecting engine ...
P2330
DTC P2330 indicates a fault with the knock sensor circuit in your vehicle.
P2331
DTC P2331 refers to a knock sensor performance issue detected by the ECM.
P2332
P2332 indicates a malfunction related to the knock sensor circuit,
P2333
P2333 indicates a problem with the knock sensor 2 circuit, affecting engine p...
P2334
P2334 indicates a problem with the knock sensor performance, impacting engine...
P2335
P2335 indicates a problem with the spark knock sensor circuit in your engine.
P2336
P2336 relates to a malfunction in the knock sensor circuit, affecting engine ...
P2337
DTC P2337 means there's a high voltage detected in the knock sensor circuit,
P2338
P2338 indicates a problem with the knock sensor's performance or range.
P2339
P2339 indicates a performance issue with the second knock sensor in your vehi...
P233A
P233A indicates engine knock or detonation detection issue.
P233B
P233B indicates a problem with the ignition coil performance, leading to pote...
P233C
P233C indicates a problem with the knock sensor performance.
P233D
DTC P233D indicates a knock sensor range or performance issue,
P233E
P233E indicates a performance problem with the knock sensor.
P233F
DTC P233F refers to spark knock detection issues in the engine.
P2340
DTC P2340 indicates a problem with the engine oil pressure sensor or circuit.
P2341
DTC P2341 indicates a turbocharger boost sensor issue, affecting engine perfo...
P2342
DTC P2342 indicates a turbocharger boost pressure sensor performance problem.
P2343
P2343 indicates a turbocharger boost pressure sensor issue.
P2344
DTC P2344 signifies a turbocharger boost pressure sensor problem,
P2345
P2345 indicates a malfunction in the turbocharger boost pressure sensor circuit.
P2346
P2346 indicates a turbocharger boost pressure sensor issue.
P2347
P2347 indicates a performance problem with the turbocharger boost sensor.
P2348
P2348 indicates a turbocharger boost control issue, meaning your engine isn't...
P2349
DTC P2349 indicates a problem with the turbocharger boost pressure sensor.
P234A
DTC P234A means the turbocharger boost pressure is higher than expected,
P234B
P234B indicates an issue with the turbocharger or supercharger boost pressure...
P234C
The P234C code signifies a fuel pressure regulator performance issue.
P234D
P234D indicates excessive turbocharger boost pressure.
P234E
P234E indicates a problem in the boost pressure control system,
P234F
P234F indicates a turbocharger overboost condition.
P2350
DTC P2350 indicates a problem with the Variable Valve Timing sensor circuit.
P2351
P2351 indicates a problem with the fuel pump control module's performance,
P2352
P2352 indicates a fuel pump control module performance issue.
P2353
P2353 indicates a performance issue with the ignition coil 'B' circuit,
P2354
DTC P2354 indicates a performance issue with the Engine Control Module (ECM).
P2355
The P2355 code signifies a problem with the ignition coil circuit A,
P2356
P2356 indicates an ignition coil range or performance issue, often leading to...
P2357
P2357 indicates an issue with the VTEC solenoid in the engine's variable valv...
P2358
Indicates a problem with the Engine Coolant Temperature Sensor (ECT) circuit,...
P2359
P2359 indicates a performance issue with the fuel pump control module,
P235A
P235A indicates a problem with the engine's oil pressure sensor or switch,
P235B
DTC P235B refers to a malfunction in the inverter cooling system of hybrid ve...
P235C
DTC P235C refers to a malfunction in the oil pressure sensor circuit,
P235D
P235D refers to a malfunction in the variable valve timing system,
P235E
P235E indicates an engine oil pressure sensor performance issue.
P235F
P235F indicates a turbocharger boost pressure sensor range/performance issue.
P2360
The P2360 code indicates a fault in the oil pressure sensor circuit,
P2361
P2361 indicates a turbocharger boost pressure sensor performance issue.
P2362
P2362 signifies a malfunction in the turbocharger boost pressure sensor or th...
P2363
DTC P2363 indicates a problem with the turbocharger boost control system.
P2364
P2364 indicates a problem with the turbocharger boost sensor performance.
P2365
The P2365 code signals a problem with the turbocharger boost pressure sensor'...
P2366
P2366 indicates an issue with the turbocharger temperature sensor circuit,
P2367
P2367 indicates a turbocharger boost control position sensor performance issue.
P2368
P2368 indicates a problem with the oil pressure sensor's performance or range.
P2369
DTC P2369 indicates a problem with the turbocharger boost pressure sensor's p...
P236A
P236A indicates a problem with the turbocharger boost control sensor.
P236B
P236B indicates a malfunction in the turbocharger boost control system.
P236C
P236C indicates an issue with the turbocharger boost pressure sensor circuit ...
P236D
P236D indicates a problem with the turbocharger boost control system.
P236E
P236E indicates a fault with the oil pressure sensor circuit, affecting engin...
P236F
P236F indicates high turbocharger or supercharger boost pressure,
P2370
P2370 indicates an issue with the turbocharger/supercharger boost sensor circ...
P2371
The P2371 code relates to a turbocharger boost sensor performance issue.
P2372
P2372 indicates a turbocharger boost sensor performance issue,
P2373
DTC P2373 indicates a performance issue with the turbocharger or supercharger...
P2374
P2374 indicates a turbocharger boost pressure sensor issue, affecting engine ...
P2375
P2375 indicates a problem with the turbocharger boost pressure sensor perform...
P2376
The P2376 code indicates a problem with the turbocharger boost sensor's range...
P2377
P2377 indicates a boost sensor problem in your turbocharger or supercharger,
P2378
DTC P2378 refers to a turbocharger or supercharger boost sensor performance i...
P2379
DTC P2379 signals a problem with the turbocharger or supercharger boost press...
P237A
P237A indicates a problem with the turbocharger boost sensor circuit performa...
P237B
P237B indicates a turbocharger/supercharger boost sensor circuit issue.
P237C
DTC P237C indicates a problem with the turbocharger or supercharger boost sen...
P237D
P237D indicates a turbocharger boost pressure sensor performance issue.
P237E
The P237E code indicates a performance issue with the exhaust gas temperature...
P237F
P237F indicates a fuel pressure sensor issue that affects engine performance.
P2380
DTC P2380 indicates a fault in the fuel pump control module circuit.
P2381
Indicates the engine control module (ECM) has detected a performance issue wi...
P2382
P2382 indicates a performance issue with the Powertrain Control Module (PCM).
P2383
P2383 is a diagnostic trouble code related to the fuel level sensor circuit m...
P2384
P2384 indicates a problem with the fuel rail pressure sensor, which affects e...
P2385
P2385 indicates a fault in the fuel pump control module's feedback circuit.
P2386
P2386 indicates a fuel level sensor performance issue, affecting fuel gauge a...
P2387
DTC P2387 indicates a high voltage detected in the fuel pump control circuit.
P2388
P2388 indicates a fuel level sensor range/performance issue.
P2389
P2389 indicates a fuel pressure sensor range/performance issue.
P238A
P238A indicates a performance issue with the fuel pressure regulator.
P238B
P238B signals a problem with the fuel pump control circuit performance.
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