P0207
Cylinder 7 Injector A Circuit
Fuel injector circuit
Generic OBD-II
High
What it means
P0207 means the ECM has detected an electrical fault — usually an open or short — in the fuel-injector control circuit for cylinder 7. With that injector not firing properly, cylinder 7 misfires, so the engine runs rough, loses power, and may be hard to start. A persistent misfire can overheat and damage the catalytic converter, so address it soon.
High
Can I keep driving? Drivable but rough — a dead injector means cylinder 7 misfires and the engine loses power; running it long risks catalytic-converter damage, so repair soon.
Common symptoms
What you'll notice
- Check-engine light on (may flash during an active misfire)
- Rough idle and misfire
- Reduced power and hesitation
- Increased fuel consumption
- Possible hard starting
Common causes
Most likely first
- Faulty cylinder 7 fuel injectorLikely
- Open or short in the injector wiringCommon
- Corroded or loose injector connectorCommon
- Injector driver fault inside the ECM/PCMLess often
How to diagnose & fix
Work through it in order
- Scan and read freeze-frame data to confirm the cylinder 7 injector circuit fault.
- Inspect the injector connector and wiring for damage, corrosion, or an open circuit.
- Measure the injector's resistance against specification.
- Verify injector operation (swap-test with another cylinder if practical).
- Replace the injector if faulty, then clear and retest.
FAQ
Quick answers
Is it safe to drive with P0207?+
Only briefly. Cylinder 7 misfiring makes the engine run rough and can overheat and damage the catalytic converter. Repair it soon.
Can I just clear P0207?+
It returns while the injector or its circuit is faulty. Because a raw misfire can harm the converter, fix the cause rather than clearing it.
Related codes
Often seen with P0207
Read & clear P0207 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX