Losing speed

[ZeroOne]

Hi friend! I have Audi A3 8l 1.9 TDI 66kw 1999year..i have a problem with speed.. when the accelerator past 3 (1/minx1000), the engine loses the power, the accelerator pedal is passive..like the car is choking..
p.s sorry for my english..

 

[Cobra88]

Change the Diesel filter and scan for fault codes with VCDS

Could be blocked Fuel fiter
Blocked Catalyst
No vent in fuel cap etc etc
or many other faults

Scan it for codes and see what it tells you is broken

 

[ZeroOne]

I make diagnostic, and there is no trouble codes.. I forget to say that when it shows the problem, I power off the engine..and is good...but when again past 3 rpm again same problem..

 

[Cobra88]

Sounds like your overboosting and hitting limp mode
but odd to have no fault code

can you do an auto scan in VCDS and post the log in here ?
Regards
Rick

 

[ZeroOne]

I made diagnostic with other kit and shows P1557 (Charge Pressure Control: Positive Deviation), and in AutoData shows this.. but I can't find this sensor on engine..can you help me? with some picture or etc..

 

[ZeroOne]

BUMP!