Question about 2000 Volkswagen Jetta TDI

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2001 Jetta TDI - Sluggish with black smoke

I had autozone read the codes and it came back P1556:
defination: BBCharge pressure negative deviation
explanation: BBexternal leak on intake or exaust side
Probable Cause:BB1 - failed charge air pressure sensor
BB2 - failed wastegate regulator valve
BB3 - failed turbo charger

Could it also be the turbo diaphram?

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Not usually you would hear a vacuum leak

Posted on Jul 24, 2009

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2002 jetta tdi rebuilt transmission .While on test drive started loosing power ..lots of black smoke ..ECL code p1556


have you tried at all to reset the program of the automatic transmission ? Always remember that even a simple connector been removed for second and re connected always needs adaptation before starting the car VW. Try to do the automatic transmission with adaptation.

Sep 09, 2012 | 2002 Volkswagen Jetta TDI

1 Answer

2002 jetta rebuilt transmission then got code p1556 after test drive.Worked fine before rebuild


I think you know, you need to go back to all the
places you paid for work, that wasn't done correctly

Sep 09, 2012 | 2000 Volkswagen Jetta TDI

1 Answer

P1556


17964/P1556 - Charge Pressure Control: Negative Deviation

Possible Symptoms
  • Reduced power output
  • Limp mode
Possible Causes
  • Boost Pressure too Low
  • Hoses/Pipes incorrect connected, disconnected or leaking
  • Charger Pressure Control defective
    • VNT (variable nozzle turbo): nozzles stuck
  • Solenoid Valve for Boost Pressure Control (N75) defective
Possible Solutions
  • Check Hoses/Pipes to/between Components
  • Check Solenoid Valve for Boost Pressure Control (N75)
  • Check / Clean / Replace Charge Pressure Control
    • Check / Clean mechanism for variable nozzles

Aug 27, 2012 | Skoda Octavia Cars & Trucks

1 Answer

2001 Jetta TDI: reset the computer on a jetta...


Take off the battery cables. Touch the positive and negative together for 10 seconds. Reattach the positive first and then the negative. Your computer will be reset to factory settings. Idle will be better, cruise will work and air will be fine at the idle position.

May 17, 2010 | 2001 Volkswagen Jetta TDI

1 Answer

Check Engine light comes on after about 30 seconds of driving. Resets when shot down. No error code left to read. 2002 vw Jetta TDI


could mean replace oxygen sencer or take battery terminals off for ten minutes to reset your computer then replace them red meaning+ black meaning _ negative

Feb 16, 2010 | 2002 Volkswagen Jetta TDI

2 Answers

My Polo tdi is emitting a continuos cloud of white smoke, it is almost like a white cload and fairly odourless, and the cars performance does not seem to be affected. To date we have spent thousand's...


check the pcv valve if bad it will allow engine to **** oil into the air intake and cause smoke,another things is to test the head gasket could be burning a little coolant

Feb 02, 2010 | 2001 Volkswagen Jetta TDI

1 Answer

2001 Jetta Tdi runs rough


Hi Whitneyford
Your priblem sounds more like the glow plug timer relay than the exhaust. White smoke after start up is a sign of diesel entering the exhaust before it has burned completly. This is as a result of the glow plugs switching off too early, which is usually caused by one or more faulty glow plugs or a faulty timer.With engine COLD, IGNITION ON... Check voltage with all 4 plugs connected. You should have a reading of 10--12 volts
If there is no power, check in-line fuse on loom coming to plugs.
If power is present, check for How Long. If only for a few seconds, the problem is with the timer. This unit (the larger of the relays and usually black in colour) is fitted on the fuse board, and there are a few different types. They come in 7 pin..8 pin..and even 9 pin units.
The glow plug light is often NOT accurate (even with a new timer unit fitted) as to the time of heating, and you will almost certainly find that power will flow to the plugs for quiet some time after the light goes out. This is not unusuall with The Jetta Tdi.
Good luck.
I hope this helps you sort out this problem
John

Aug 18, 2009 | 2001 Volkswagen Jetta TDI

1 Answer

2001 jetta tdi auto. only runs 345 miles on a full tank of diesel


the catilic converter may be clogged. this could b.e the reason for the black smoke .it could also cause poor fuel mileage .you might try removing it and see if the black smoke stops .if it does change it and your fuel mileage should improve

Dec 10, 2008 | 2001 Volkswagen Jetta TDI

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