What usually causes it
- A damaged wire or a loose, corroded plug at the regulator
- A failed pressure regulator or control valve
- A blown fuse or bad ground
- A fault in the engine computer, which is not common
P0090Starts at: Get it checked this week
Fuel pressure regulator control wiring problem
The computer found an electrical problem in the circuit that controls the fuel pressure regulator. This part keeps fuel pressure steady.
Check this first
Look at the plug on the fuel pressure regulator or control valve. Make sure it is pushed in tight and free of rust.
What to watch for
- Stalling or weak power
- Hard starting
- A strong smell of gas
Can I keep driving?
We rate P0090 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 P0090
What does P0090 mean?
Fuel pressure regulator control wiring problem. The computer found an electrical problem in the circuit that controls the fuel pressure regulator. This part keeps fuel pressure steady.
Can I keep driving with P0090?
We rate P0090 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 P0090?
The most common causes, in order: A damaged wire or a loose, corroded plug at the regulator; A failed pressure regulator or control valve; A blown fuse or 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.