1. Vehicle Manual: The first place to look is in the vehicle manual or owner's handbook. This manual typically contains technical specifications and details about the car, including the fuel pressure.
2. Online Sources: You can also find fuel pressure specifications for your vehicle online by searching for your car's model, year, and engine type. Several automotive websites and databases provide this information.
3. Contact a Mechanic: If you're unable to find the fuel pressure specifications in the manual or online, you can contact a mechanic or an authorized Peugeot dealer. They should have access to this information and can provide guidance.
4. Service Center: If you have access to a Peugeot service center or dealership, they can provide you with the exact fuel pressure specifications for your vehicle and may also have the necessary equipment to measure and adjust the fuel pressure if needed.
Remember that modifying or adjusting fuel pressure should be done by a trained professional to ensure proper engine performance and safety.