Can you keep driving?
Can you keep driving?
Stop driving if any of these apply
- !The check-engine light is flashing.
- !The engine is shaking badly, stalling, or struggling to accelerate.
What to check first
Step-by-step checks
- 1
Free - no tools
Inspect the injector connector and harness for looseness, corrosion, or heat damage
- 2
Free - no tools
Check for recently disturbed work around the fuel rail or injector area
- 3
Basic tool needed
Use scan data to see whether the fault stays with cylinder 14 or moves when parts are swapped
- 4
Basic tool needed
Look for rough running or a fuel smell that might point toward the injector side of the diagnosis
- 5
Basic tool needed
Keep clear of hot exhaust parts while checking the injector area
If the code returns
- -If the fault moves with the injector, replacement becomes more likely than harness repair.
- -If the code comes back after connector work, revisit the driver circuit and continuity checks.
- -If the cylinder still misfires after injector checks, test compression and ignition next.
Background
What this code means
P0214 is a generic OBD-II injector circuit code for cylinder 14.
A fault on cylinder 14 can come from the injector, the harness, the connector, or the ECU driver side of the circuit.
A cylinder-specific misfire, rough idle, or one-cylinder imbalance can fit this code.
Diagnosis
Common causes
Injector circuit wiring fault
A damaged wire can prevent cylinder 14 from firing correctly.
Loose or corroded connector
A poor connection can make the fault intermittent.
Failed injector
The injector may be electrically open or stuck.
Driver circuit issue
The ECU output may not be commanding the injector normally.
Avoid these mistakes
What not to do
- xDo not keep driving if the engine is shaking badly or the check-engine light is flashing.
- xDo not replace injector or solenoid parts before checking the connector, wiring, and fuel supply side.
Parts
Parts that may need replacing
See also
Related OBD codes
Source notes
Generic OBD-II (SAE J1979 / ISO 15031-5). P0214 was expanded around common injector circuit faults, including wiring issues, connector problems, and injector failure.
This guide is written as a generic multi-make reference, so bulletin history, sensor locations, and repair order can still change by manufacturer and engine family.
This is generic OBD-II guidance and should not override vehicle-specific service information. Exact diagnosis and repair steps vary by make, engine family, and model year.
Last reviewed: 2026-04-10
Reference: Open reference