Luxus Panzer

My car has been running worse and worse the last few days, loss of power and a random O2 sensor Cel. 99% sure the O2 is good as it is only like 3 years old.

Today I start the car and I have NO power.. almost stalls out at idle.

When I attempt to drive, it feels like the car is getting no gas..If I mash the gas pedal down more...I get small surges of power...but cant get over 20MPH...not even close.

I am thinking this could be a bad fuel pump? symptoms seem correct (input please)

or a clogged fuel filter?

Clogged Fuel pressure regulator?

Bad POS (power output stage)?

Please chime in with any thoughts or things for me to look at?

I am volunteering all this weekend and now I have no car to get to the places people are counting on me

I am at work all day so I am trying to get a good "battle plan" down foe when I get home so I can attack this car tonight and maybee get it fixed.

Thanks all.
Z.

audi01a6

Z,
YEAR,MODEL,AUDI

Luxus Panzer

B4 90Q (1995)

audi01a6

thank u

Lago Blue

Is the code just on one side?

When you say random, do you mean it doesn't stay on all the time?

Can you listen to your pump sound with the seat-back folded down while driving to hear any pitch change or inter-mittance?

When my fuel pumps have gone in the past, they quit very briefly just a couple of times before quitting altogether. I was able to keep driving without stopping. They quit just long enough for the power to fall off and then would resume as normal till complete failure a couple of days later.

Lots of fuel in the tank, and no leaks?

Is the EGR valve closing?

Do you have the stock intake Noise-Damper?

Sure it's fuel delivery? Could it be fuel metering? Perhaps an air-leak or the TPS?

duanevw

There is usually a transfer pump under a seat or the trunk matting. That's usually the pump that goes and gives erratic symptoms like stalling out jerking, etc. On all other german cars like VW same problem and I never had to ever replace the main fuelpump under the car. So I would start there and be sure to check all voltages 12v at the connectors first, just in case it is a electrical issue. Then swapp out the tranfer pump out of the fuel tank or test the delivery rate which the bentley usually have the rate and time in a container. I have done this numerous times on all VW's.

Duanevw, MI

Luxus Panzer

nope, only 1 pump in a B4 and its in the tank.

duanevw

Ok Luxus Panzer, my mistake about the 2 pumps. Thanks for catching my error....
Duane