Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0090FRP CONTROL SYSTEM
P0090Fuel Pressure Regulator 1 Control Circuit Opened Link to engine warning light on and limp home mode
P0090Fuel Pressure Regulator Control Circuit 1 Open" stored in the engine control unit (ECM)
Manufacturer communications
5Original wording in English
BUICK, CHEVROLET, GMC
This Preliminary information communicates there could be an electrical connection concerns at the high pressure fuel pump, and may set any combnation of diagnostic trouble codes, P0089 P0090 P00C6 P163A and / or P228C. The technician should inspect the terminals and manipulate the harness to see if any of the codes can be duplic…
MASERATI
This Diagnostic Sheet serves as a guide and provides additional diagnostic info for possible DTC"P0090 - Fuel Pressure Regulator Control Circuit 1 Open" stored in the engine control unit (ECM).
MASERATI
Guidance to investigate vehicles related to the storage of ECM of DTC P0090 - Fuel Pressure Regulator 1 Control Circuit Opened Link to engine warning light on and limp home mode.
INFINITI
2016-2017 QX80; MIL ON WITH P0090 AND U1000 AND/OR U1001 STORED IF YOU CONFIRM MIL is ON with the following DTC stored: - P0090 (FRP CONTROL SYSTEM) And U1000 and/or U1001 DTCs are stored in one or more other control units. NOTE: If P0090 is set and U1000 and/or U1001 DTCs are not set, this Bulletin does not apply. Refer to the …
Check vehicle applicability
44A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Buick | ENCLAVE ↗ | 2025 |
| Chevrolet | TRAVERSE ↗ | 2025 |
| Chevrolet | TRAVERSE ↗ | 2024 |
| GMC | ACADIA ↗ | 2025 |
| GMC | ACADIA ↗ | 2024 |
| Infiniti | QX80 ↗ | 2017 |
| Infiniti | QX80 ↗ | 2016 |
| Maserati | GHIBLI ↗ | 2024 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Fuel Pressure Regulator 1 Control Circuit
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.