PowertrainP1491
CautionSeverity: Caution - get it checked when you can
VC Cut/V Bypass/V
Key terms: Control module: a small computer that runs one part of the car · Powertrain: engine, transmission and emissions
1What it means in plain English
The engine or powertrain control system has stored a fault that does not have specific guidance in this database yet.
2Common causes
- Sensor or actuator fault
- Wiring or connector fault
- Vacuum or intake leak
- Fuel or ignition problem
- Control module fault
3Can I drive?
Have it diagnosed promptly. If the car runs and drives normally, drive gently to a workshop. If it runs badly, stalls, overheats, loses oil pressure, or a warning light is flashing or red, stop safely and get professional help. If the code concerns the brakes, brake vacuum or brake assist, do not drive until it is checked: a hard pedal or longer stopping distance means stop.
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 28
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | P1491 | No description available | Powertrain |
| Chery | P1491 | EVAP Canister Purge Valve 2 (N333): Open Circuit Brand | Powertrain |
| Daewoo | P1491 | VC Cut/V Bypass/V Brand | Powertrain |
| DFFS | P1491 | VC CUT/V BYPASS/V Brand | Powertrain |
| DFXK | P1491 | EVAP Canister Purge Valve 2 (N333): Open Circuit Brand | Powertrain |
| EOBD | P1491 | NW khóa Brand | Powertrain |
| Ford | P1491 | Note: Equivalent ODBII DTC Brand | Powertrain |
| Geely | P1491 | EVAP Canister Purge Valve 2 (N333): Open Circuit Brand | Powertrain |
| GM | P1491 | VC Cut/V Bypass/V Brand | Powertrain |
| Holden | P1491 | Diesel Exhaust Fluid (DEF) Injection Pressure too High Brand | Powertrain |
| Honda | P1491 | No description available | Powertrain |
| Isuzu | P1491 | No description available | Powertrain |
| Land Rover | P1491 | Secondary switch solenoid circuit Brand | Powertrain |
| Mahindra | P1491 | VC CUT/V BP/V Brand | Powertrain |
| Maserati | P1491 | No description available | Powertrain |
| Mazda | P1491 | Note: Equivalent ODBII DTC Brand | Powertrain |
| Mitsubishi | P1491 | FMA flow correction too high Brand | Powertrain |
| Nissan | P1491 | Vc cut/v bypass valve Brand | Powertrain |
| Opel | P1491 | VC Cut/V Bypass/V Brand | Powertrain |
| Peugeot | P1491 | No description available | Powertrain |
| Porsche | P1491 | NW Verriegelung Bk2 Brand | Powertrain |
| Proton | P1491 | FMA flow correction too high Brand | Powertrain |
| Renault | P1491 | No description available | Powertrain |
| Saab | P1491 | VC Cut/V Bypass/V Brand | Powertrain |
| MG (SAIC) | P1491 | Electronic Water Heater Relay 2 Circuit Brand | Powertrain |
| Sprinter | P1491 | No description available | Powertrain |
| Subaru | P1491 | Positive Crankcase Ventilation (Blow-by) Function Problem Brand | Powertrain |
| Suzuki | P1491 | VC CUT/V BYPASS/V 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.
5Related codes
Browse Pxxx codes or P149xx codes.