Attention! Gasoline is a flammable liquid, so when working with your favorite element of the fuel system, take all fire safety measures. See the warning at the beginning paragraph 2.
1. Relieve pressure in the fuel system (see paragraph 2).
2. Disconnect the negative cable from the battery.
Warning. If your car's audio system is equipped with an anti-theft protection, make sure you know the unlock code before disconnecting the battery.
3. Disconnect the vacuum and fuel hoses from the fuel pressure regulator.
4. Turn away bolts of fastening of a regulator (pic. 14.4).
5. Install in reverse order. Replace O-ring. Moisten the O-ring with clean engine oil before installing. Tighten the regulator mounting bolts to the required torque.