PowertrainP0089
SeriousSeverity: Serious - have it checked soon
Fuel Pressure Regulator 1 Performance
Key terms: SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions
Safety: This code relates to fuel pressure or a fuel leak, which carries a stall or fire risk.
1What it means in plain English
The fuel pressure regulator is not holding pressure where the engine computer expects, so fuel delivery is not being controlled properly.
2Common causes
- Faulty fuel pressure regulator
- Weak or failing fuel pump
- Clogged fuel filter
- Leaking fuel line
- Faulty fuel pressure sensor
3Can I drive?
Serious · drive with care
Have it diagnosed before driving further if the engine runs badly or smells of fuel. Poorly controlled fuel pressure can cause stalling, rich running or lean-running engine damage.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 37
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | P0089 | Fuel Pressure Regulator 1 Performance SAE | Powertrain |
| BAIC Motor | P0089 | Fuel Pressure Regulator 1 Performance Brand | Powertrain |
| Mercedes-Benz | P0089 | Fuel Pressure Regulator 1 Performance SAE | Powertrain |
| BYD | P0089 | Suction control valve stuck Brand | Powertrain |
| Chery | P0089 | Suction control valve stuck Brand | Powertrain |
| Chrysler | P0089 | Fuel Pressure Regulator 1 Performance SAE | Powertrain |
| Daewoo | P0089 | Gearbox Parameters Not Learned Brand | Powertrain |
| Daihatsu | P0089 | Regulator abnormal Brand | Powertrain |
| DFFS | P0089 | Lost communication with headlamp ECU Brand | Powertrain |
| DFFX | P0089 | Suction control valve stuck Brand | Powertrain |
| DFXK | P0089 | Fuel Pressure Regulator 1 Performance Brand | Powertrain |
| EOBD | P0089 | Drivstofftrykkregulator 'A' ytelse Brand | Powertrain |
| Ford | P0089 | Mechanical rail pressure limiter activated Brand | Powertrain |
| Geely | P0089 | Suction control valve stuck Brand | Powertrain |
| GM | P0089 | Fuel pressure regular performance Brand | Powertrain |
| Great Wall | P0089 | Suction control valve stuck Brand | Powertrain |
| Hafei | P0089 | Suction control valve stuck Brand | Powertrain |
| Holden | P0089 | Fuel Pressure Regulator Performance Brand | Powertrain |
| Honda | P0089 | Fuel Pressure Regulator 1 Performance SAE | Powertrain |
| Hyundai | P0089 | Fuel Pressure Regulator 1 Performance SAE | Powertrain |
| Isuzu | P0089 | Fuel Pressure Regulator 1 Performance SAE | Powertrain |
| Land Rover | P0089 | Fuel Pressure Regulator 1 Performance SAE | Powertrain |
| Maserati | P0089 | Fuel Pressure Regulator 1 Performance Brand | Powertrain |
| Mazda | P0089 | Mechanical rail pressure limiter activated Brand | Powertrain |
| Mitsubishi | P0089 | Rail pressure control valve Brand | Powertrain |
| Opel | P0089 | Fuel pressure regular performance Brand | Powertrain |
| Perodua | P0089 | Regulator abnormal Brand | Powertrain |
| Peugeot | P0089 | Fuel Pressure Regulator 1 Performance SAE | Powertrain |
| Porsche | P0089 | Fuel Pressure Regulator 1 Performance SAE | Powertrain |
| Proton | P0089 | Rail pressure control valve Brand | Powertrain |
| Saab | P0089 | Kraftstoffdruckregler: Funktion Brand | Powertrain |
| MG (SAIC) | P0089 | Fuel Pressure Regulator 1 Performance Brand | Powertrain |
| Subaru | P0089 | Fuel Pressure Regulator 1 Performance SAE | Powertrain |
| Suzuki | P0089 | Fuel Pressure Regulator 1 Performance Brand | Powertrain |
| Tata | P0089 | Insufficient Rail Pressure Brand | Powertrain |
| Toyota | P0089 | Lost communication with headlamp ECU Brand | Powertrain |
| Volkswagen | P0089 | Valve for fuel metering (N290): implausible signal; Open circuit Brand | Powertrain |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Extended variant codes 13
These 7-character codes are manufacturer-specific variants of P0089 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Hyundai | P008900 | If over-current in rail pressure regulator valve circuit is detected for 0.28 sec., ECM sets DTC. The fault is caused by short to power or internal short circuit in rail pressure regulator valve Brand | Powertrain |
| Porsche | P008900 | Fuel Pressure Regulator 'A' Performance Brand | Powertrain |
| SsangYong | P008900 | Rail pressure control out of range Brand | Powertrain |
| Mercedes-Benz | P008905 | Fuel pressure regulating valve 1 has a malfunction. There is a programming fault. Brand | Powertrain |
| Mercedes-Benz | P008906 | Fuel pressure regulating valve 1 has a malfunction. There is an algorithm fault. Brand | Powertrain |
| Sprinter | P008906 | Das Druckregelventil 1 für Kraftstoff hat Funktionsstörung. Es liegt ein Algorithmusfehler vor. Brand | Powertrain |
| Mercedes-Benz | P008907 | Fuel pressure regulating valve 1 has a malfunction. There is a mechanical fault. Brand | Powertrain |
| Mercedes-Benz | P008909 | Fuel pressure regulating valve 1 has a malfunction. There is a component fault. Brand | Powertrain |
| Mercedes-Benz | P008910 | No description available | Powertrain |
| Mercedes-Benz | P008949 | Fuel pressure regulating valve 1 has a malfunction. There is an internal electrical fault. Brand | Powertrain |
| Mercedes-Benz | P008950 | No description available | Powertrain |
| Mercedes-Benz | P008951 | Fuel pressure regulating valve 1 has a malfunction. The component is not programmed. Brand | Powertrain |
| Mercedes-Benz | P008952 | Fuel pressure regulating valve 1 has a malfunction. The component has not been put into operation. Brand | Powertrain |
6Related codes
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