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 801-900 of 4123 total codes

P03XX Engine Control System

P0320
Indicates a severe issue, it can lead to more significant problems if left un...
P0321
P0321 indicates a problem with the engine speed input circuit,
P0322
P0322 indicates a low signal from the ignition/distributor engine speed input...
P0323
P0323 indicates a high input signal from the knock sensor circuit,
P0324
P0324 indicates a problem with the knock sensor circuit, affecting engine per...
P0325
P0325 refers to a malfunction in the knock sensor circuit, which can affect e...
P0326
P0326 indicates a problem with the knock sensor's performance,
P0327
DTC P0327 indicates a low input from the knock sensor circuit,
P0328
P0328 indicates a high voltage signal from the knock sensor circuit.
P0329
P0329 indicates a problem with the knock sensor's performance or range.
P032A
P032A indicates a problem with the knock sensor's performance.
P032B
P032B means there's a problem with the knock sensor's performance.
P032C
P032C indicates a knock sensor range/performance issue, affecting engine perf...
P032D
P032D indicates a performance issue with the knock sensor.
P032E
The P032E code signifies a malfunction in the knock sensor performance,
P032F
P032F indicates a knock sensor performance issue in your engine,
P0330
P0330 refers to a malfunction in the knock sensor circuit, which is crucial f...
P0331
P0331 indicates a problem with the knock sensor's performance or range.
P0332
P0332 indicates a low input signal from the knock sensor on bank 2,
P0333
P0333 indicates a high input signal from the knock sensor 2 circuit,
P0334
P0334 means there's an intermittent issue in the crankshaft position sensor '...
P0335
P0335 indicates a crankshaft position sensor A circuit malfunction.
P0336
P0336 indicates a problem with the crankshaft position sensor's performance.
P0337
P0337 indicates a low signal from the crankshaft position sensor.
P0338
P0338 indicates a problem with the crankshaft position sensor's circuit perfo...
P0339
P0339 indicates an issue with the Crankshaft Position Sensor A circuit.
P033A
P033A indicates a camshaft position sensor performance issue that can affect ...
P033B
P033B indicates a performance issue with the crankshaft position sensor 'B'.
P033C
P033C indicates a crankshaft position sensor error, affecting engine performa...
P033D
The P033D code indicates a problem with the crankshaft position sensor 'A' ci...
P033E
P033E indicates a malfunction with the crankshaft position sensor performance.
P033F
P033F indicates a problem with the crankshaft position sensor's performance o...
P0340
The P0340 code indicates a problem with the camshaft position sensor circuit,...
P0341
The P0341 code indicates a malfunction in the camshaft position sensor's perf...
P0342
P0342 indicates a low voltage signal from the camshaft position sensor.
P0343
P0343 indicates a high voltage input from the camshaft position sensor circuit.
P0344
The P0344 code means there's an intermittent issue with the camshaft position...
P0345
P0345 indicates a malfunction in the camshaft position sensor circuit.
P0346
DTC P0346 indicates a problem with the camshaft position sensor's signal.
P0347
The P0347 code signals an issue with the camshaft position sensor A circuit,
P0348
P0348 indicates a high input signal from the camshaft position sensor,
P0349
P0349 refers to a problem with the camshaft position sensor A circuit,
P034A
P034A indicates a malfunction in the camshaft position sensor,
P034B
P034B indicates a camshaft position sensor issue, affecting engine timing.
P034C
P034C indicates the camshaft position timing is over-retarded,
P034D
P034D indicates a camshaft position sensor issue, often due to timing chain p...
P034E
P034E indicates a performance issue with the camshaft position sensor.
P034F
The P034F code refers to a camshaft position sensor malfunction,
P0350
DTC P0350 indicates a malfunction in the ignition coil circuit.
P0351
P0351 indicates a malfunction in the ignition coil 'A' circuit,
P0352
P0352 indicates a malfunction in the ignition coil circuit for cylinder B,
P0353
P0353 indicates a malfunction in the ignition coil circuit for coil 'C'.
P0354
P0354 indicates a malfunction in the ignition coil 'D' circuit.
P0355
DTC P0355 indicates a malfunction in the ignition coil 'E' primary/secondary ...
P0356
P0356 means there is a problem with the ignition coil 'F' circuit.
P0357
P0357 indicates a malfunction in the ignition coil 'G' circuit,
P0358
P0358 indicates a problem with the ignition coil circuit for cylinder 8.
P0359
P0359 indicates a malfunction in the ignition coil 'B' circuit,
P035A
P035A indicates a problem with the ignition coil 'A' circuit, affecting engin...
P035B
P035B indicates an ignition coil 'B' circuit malfunction.
P035C
P035C indicates a malfunction in the ignition coil 'C' circuit.
P035D
P035D indicates a problem with the ignition coil 'D' circuit, affecting engin...
P035E
P035E indicates a malfunction in the ignition coil 'E' circuit.
P035F
P035F indicates an issue with the ignition coil 'B' control circuit,
P0360
P0360 indicates a camshaft position sensor A circuit issue, affecting engine ...
P0361
DTC P0361 signals an issue with the camshaft position sensor, affecting engin...
P0362
P0362 indicates a problem with the camshaft position sensor 'B'.
P0363
The P0363 code indicates a high input signal from the camshaft position senso...
P0364
P0364 indicates a camshaft position sensor performance issue.
P0365
DTC P0365 indicates a malfunction in the camshaft position sensor circuit on ...
P0366
P0366 indicates a camshaft position sensor performance issue.
P0367
P0367 indicates an issue with the camshaft position sensor 'B' circuit.
P0368
DTC P0368 indicates a problem with the camshaft position sensor circuit,
P0369
P0369 indicates a camshaft position sensor performance issue, affecting engin...
P036A
P036A indicates a camshaft position timing issue that can affect engine perfo...
P036B
P036B indicates a problem with the camshaft position sensor B circuit,
P036C
P036C indicates a problem with the camshaft position sensor circuit.
P036D
P036D indicates a camshaft position sensor performance issue.
P036E
P036E indicates a camshaft position sensor performance issue.
P036F
P036F indicates a problem with the camshaft position sensor performance.
P0370
P0370 indicates a malfunction in the timing reference signal critical for eng...
P0371
P0371 indicates a problem with the timing reference high resolution signal,
P0372
P0372 indicates a malfunction with the engine's timing signal,
P0373
P0373 indicates a problem with the crankshaft position sensor signal.
P0374
DTC P0374 indicates an issue with the timing signal from the crankshaft posit...
P0375
P0375 indicates a crankshaft position sensor issue affecting engine performance.
P0376
P0376 signifies a problem with the crankshaft position sensor 'B',
P0377
P0377 indicates a problem with the Crankshaft Position Sensor 'A' circuit per...
P0378
DTC P0378 indicates a problem with the crankshaft position sensor circuit.
P0379
Indicates a problem with the crankshaft position sensor performance or its ra...
P037A
DTC P037A indicates a timing issue between the crankshaft and camshaft,
P037B
P037B indicates a malfunction in the camshaft position sensor signal.
P037C
P037C indicates a problem with the crankshaft position sensor signal.
P037D
The P037D code indicates a problem with the camshaft position sensor's signal...
P037E
Indicates ssociated with a timing control error in the vehicle's engine manag...
P037F
P037F indicates a problem with the crankshaft position sensor signal.
P0380
P0380 indicates a malfunction in the glow plug circuit of diesel engines.
P0381
P0381 indicates a malfunction in the glow plug circuit for diesel engines.
P0382
P0382 indicates a high input signal in the glow plug circuit of diesel engines.
P0383
DTC P0383 signifies a malfunction in the glow plug heater circuit.
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