Recommendation. You can check the operation of the fuel pressure regulator without removing it from the car (see "Fuel Rail - Operating Pressure Check"). We replace the faulty pressure regulator.
Removing
1. Remove the fuel module (see "Fuel module for 21114 and 21124 engines (1,6i) - removal and installation").
2. Raise the cover of the fuel module and disconnect the wire tip from the fuel pressure regulator (see above, "Fuel module for 21114 and 21124 engines (1,6i) - replacement of the fuel gauge sensor").
3. Using a slotted screwdriver, pry off and remove the spring retainer of the pressure regulator.
4. Remove the regulator from the fuel module cover.
Installation
We install a new fuel pressure regulator in the reverse order, after applying a thin layer of engine oil to the o-rings.