Honda OBD Codes: Meaning & Fixes
Honda: 80 error codes with meaning, severity, likely causes and repair cost estimates.
44Codes
2.7Average severity
9%High or critical
16%DIY-friendly
Severity distribution
Generic codes with Honda data
Field data · Honda
Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.
Most viewed
P0302
Powertrain
Cylinder 2 keeps misfiring. On inline engines it's a middle cylinder, so rule out coolant…
Moderate
P0301
Powertrain
Cylinder 1 is repeatedly failing to fire. The cause is almost always its coil, plug, injector…
Moderate
P0172
Powertrain
The engine computer is pulling as much fuel as it's allowed on bank 1 and the mixture is still…
Moderate
P0457
Powertrain
The EVAP leak test found the system wide open — almost always a loose, missing or worn gas cap.
Minor
P0012
Powertrain
The bank 1 intake cam lags behind the angle the PCM wants, often from chain stretch or weak oil…
Moderate
P0304
Powertrain
Cylinder 4 is misfiring. Its end or rear position makes water, oil and intake leaks common…
Moderate
All codes (4)
P0087
Powertrain
Measured fuel pressure has dropped well below what the engine computer is asking for.
High
P0300
Powertrain
The engine computer sees misfires that jump between cylinders or hit several cylinders at once.
High
P0751
Powertrain
Solenoid A is wired fine but its valve isn't doing its job, so gears are missing – often stuck…
High
P1362
Honda · Powertrain
The PCM gets no signal at all from the top dead center (TDC) sensor; stalling or a no-start…
High