Thanks for the video. It seems like you have a restriction in the air intake of the engine, or the low-pressure fuel pump is getting weak. Is the power okay up to 5,000 RPMs?
Here is a guide to help and instructions for your car in the images below:
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Delivery Pressure:
Test Conditions:
The fuses must be okay.
Battery voltage must be at least 12 volts.
All electrical consumers such as, for example, lights and rear window defogger, must be turned off.
Start the engine and run at idle speed.
Close the shut off valve "B" for a maximum of 15 seconds and read the pressure on the Pressure Tester (VAS 6551) :
Specified value .................... 0.5 bar (7.25 psi) minimum
Auxiliary Fuel Pump (In-line Fuel Pump) Pressure:
Test Conditions:
Battery voltage is at least 12.5 volts
The fuel filter is okay.
Fuel tank: Fuel level, min. reserve.
The ignition is off.
Connect the vehicle diagnostic tester and perform the guided function "Check Electric Fuel Pumps".
The fuel pump now runs for 30 seconds.
Let the fuel pump run until the highest fuel pressure is reached.
Specified value .................... at least 3.5 bar (50.7 psi)
Fuel Delivery Quantity:
Test Conditions:
The fuses must be okay.
Battery voltage is at least 12 volts
Specified value .................... at least 1000 ml/30 seconds
Check out the images (below). Please let us know what happens.
Images (Click to make bigger)
Tuesday, February 20th, 2024 AT 10:53 AM