P0200 Code: Injector Circuit Malfunction
⚠️ Severe · not recommended to drive
Not recommended. The engine may run very rough or stall, and driving can damage the catalytic converter.
What P0200 means
The computer detects an open or shorted circuit in the fuel injector wiring, which usually means one or more injectors aren't getting power or ground. When an injector stops working, that cylinder gets no fuel, causing misfires, rough running, and power loss. This code can point to a wiring problem, a blown fuse, or a failed injector.
Symptoms
- Check engine light on (may flash)
- Rough idle or misfire
- Loss of power
- Engine may stall
- Poor fuel economy
Common causes
- common: Damaged wiring or connector in the injector harness
- common: Faulty fuel injector
- less common: Blown injector fuse or failed relay
- less common: Injector driver fault in the engine computer
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Inspect and repair injector wiring and connectors | Yes | $20–150 |
| Replace the faulty injector or injectors | Mechanic | $60–300 |
| Replace the injector fuse or relay | Yes | $10–60 |
Frequently asked questions
Can I drive with a P0200 code?
It's best not to. The engine may misfire badly or stall, and driving can damage the catalytic converter. Get it fixed before driving far.
What is the most common cause of P0200?
Damaged injector wiring or connectors, or a faulty injector, are the most common causes.
How much does it cost to fix a P0200?
A wiring repair is usually $20–150. Replacing an injector typically runs $60–300 per injector, plus labor.
Related codes
P0201
P0201 Code: Injector Circuit Malfunction - Cylinder 1
P0202P0202 Code: Injector Circuit Malfunction - Cylinder 2
P0300P0300 Code: Random/Multiple Cylinder Misfire Detected
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.