Avensis 2004 2,0 Obdii Error Code P0191

[Jan-Ake]

Petrol-engine (with 24k km on tacho) gets weak and comes up with error code P0191,fuel pressure sensor on common rail.

Fuel-tank is full.

Any suggestions on defective parts?

Thanks in advance

Jan-Ake

[ents]

Hi

First check the wiring and connector of fuel pressure sensor, it`s the black sensor on fuel delivery pipe

If sensor looks good, you should measure the fuel pressure. It should be 3.5 bar, if not near that, the fuel pump is weak and should be replaced.

[TomdeGuerre]

Does that car have the fuel filter combined with the fuel pump and submerged in the tank?