What usually causes it
- A damaged wire or a loose, rusty plug at the injector
- A failed fuel injector
- A blown fuse or a bad ground
- A fault in the engine computer, which is not common
P0204Starts at: Get it checked this week
Fuel injector circuit problem (cylinder 4)
The fuel injector sprays fuel into cylinder 4. The computer found an electrical problem in the circuit that controls it.
Check this first
Look at the plug on the injector for a loose fit or rust. A repair guide for your engine shows which one is cylinder 4.
What to watch for
- Shaking or stumbling, which is a sign of a misfire
- A flashing check engine light. Stop driving as soon as you safely can
- A strong smell of gas
Can I keep driving?
We rate P0204 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
Quick answers about P0204
What does P0204 mean?
Fuel injector circuit problem (cylinder 4). The fuel injector sprays fuel into cylinder 4. The computer found an electrical problem in the circuit that controls it.
Can I keep driving with P0204?
We rate P0204 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
What usually causes P0204?
The most common causes, in order: A damaged wire or a loose, rusty plug at the injector; A failed fuel injector; A blown fuse or a bad ground; A fault in the engine computer, which is not common.
Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.