Re: where is the fuel filter on a A4 2000-2001 1.8 non...
Fuel filter is not fun on this car. Located in the front top of the tank beneath the car. Tank must be lowered to gain access. Banjo nuts difficult to access. Fuel under pressure in line will squirt out... messy. Good job to be done on a lift.
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COULD BE WATER IN FUEL.DRAIN WATER FROM FUEL FILTER BY THE DRAIN PLUG UNDER FUEL FILTER REPLACE FUEL FILTER.IF ENGINE STILL STALL OUT PROBLEM COULD BE THE FUEL INJECTION PUMP.THAT WOULD BE A DEALERSHIP FIX.
Considering the fact that the turbo is in line with the airflow (intake); I suggest replacing the airfilter and the fuel filter. If the airflow is restricted (dirty filter), the air/fuel mixture will not be right.
If the air filter is good - and you think that it's just the turbo - you may have a defective unit (turbo).
I also suggest taking the van to an auto parts dealer and have a diagnostics test done. This will present any codes for any units (including turbo) that may need replaced or serviced.
Please let me know if you need further assistance.
Check the servo first. Maybe the servo needs to be clean and also make sure that the engine is properly tunedup. Ihave the same problem also but when I replace the servo everything now is working fine.
If you have questions feel free to reply to this solution.
DEPENDING ON THE MAKE, MODEL, ENGINE ID OF YOUR VEHICLE GAS MILEGE WILL VARY. ALL VEHICLES TEND TO LOSE EFFICIENCY WITH AGE AND MILEGE ON THE ODOMETER. ONE MILEGE ROBBING ASPECT OF THIS IS THAT THE E.G.R. SYSTEM ( exhaust gas recirculation), TENDS TO BUILD UP CARBON DEPOSITS WHICH RESTICT OR IN WORST CASES BLOCK THE FLOW OF UNBURNT EMISSIONS BACK TO THE INTAKE. ALSO, THIS CONDITION FORMS IN THE AIR INLET, AND VALVE PORTS. WHEN WAS THE LAST TIME YOU ADDED INJECTOR CLEANERS TO YOUR FUEL. M.G.
you really need to test fuel pressure/did you replace filter under car/you should also replace fuel regulator on top frt of eng./but most likely the fuel pump has moved on the mounting bracket and allowing fuel to leak back into the tank (low pressure)
If you have the turbo charged version, this issue refers to the "turbo dead zone" between 3500-4000 RPM. This refers to the no acceleration between these two RPMs and is caused by the time difference between the time the second turbo kicks in after the first turbo has activated. If you are referring to acceleration loss/delay below 3500 RPM, the issue is "turbo lag" which pertains to the delay in time between the stepping on the gas pedal and the 1st turbo activating.
In some other instances including non-turbo versions, the problem may be due to air leak in the intake manifold and the air cleaner. In the turbo versions, it would include the in/out junction of the blower including the clamps.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.