Question about 2001 Volkswagen Jetta TDI

1 Answer

Vw caddy 2001 TDI

I have 2001 TDI caddy , some times the turbo works and some times it doesn`t specially when i drive at 100 km speed and more at climbing the heights i don`t know what to do , please help me what to do ??? specaily i like my car alot

Posted by on

  • Anonymous Mar 19, 2014

    2001 vw caddy tdi van. mixing oil through coolant and getting hard to start.

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,874 Answers

Your car goes in "limp mode"!!!
If you scan the EDC-15P engine control unit with a VAG or KTS -BOSCH diagnosis tool you will find this:
"Fault code: P1557 - Turbo Boost pressure control exceeded"
You must try follows if you are able to do this:
1. Engine stopped and ignition switch off. Check all pneumatic connections and hoses between turbocharger actuator = pressure unit for boost-pressure control, boost-pressure control solenoid valve, vacuum reservoir, EGR control solenoid valve, intake-manifold flap solenoid valve, EGR valve with throttle - part of intake manifold. Also the vacuum connection between tandem pump and brake booster. If you find something wrong replace parts. If not go to step 2.
2. Extract the hose of the turbocharger actuator = pressure unit for boost-pressure control part of turbocharger. Instead of the original hose you must place another 1 meter long hose with the same inside diameter, and then you check to inspire yourself the air from the other one extremity of this hose. The mechanical connecting rod of the turbocharger actuator must have a smooth and whole motion. If you can do that with your mouth, then you must replace the boost-pressure control solenoid valve. If you can not reach this with your mouth, then you go to step 3.
3. This is the most difficult work. The problem is that the soot particles deposits inside the turbocharger plugging the variable nozzle geometry mechanism = adjustable vanes of the turbine. If the turbocharger actuator is not able to adjust the turbine vanes the charge air pressure increase too much and ECU (engine control unit) go in "limp mode" = engine protection software. As a result the "limp mode" engine still running until you turn the engine off (ignition switch off) and back on when the "limp mode" is deactivated, but the fault ("Fault code: P1557 - Turbo Boost pressure control exceeded") still remain in ECU memory !!!
4. You must be able to extract the turbo from the engine and then to disassemble the turbocharger, clean inside adjustable vanes mechanism and refit all.
It is some work to do here, but after that you will be full satisfied! NO MORE "LIMP MODE"!!!

Posted on Jul 11, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

My vw Golf 4 1998 model, engine 1.8 speed sensor is dead. now temporarily i would like to know if i have to drive 120km/h, what rpm do i have to drive at using the rpm meter?


roughly if you are doing 3000rpm you will be doing approx. 100 klms/hr or 60 mph at 120km/hr you would be around 3200rpms.; Remember this will be in o/drive or 5th

Dec 04, 2013 | 2001 Volkswagen Golf

2 Answers

Hi there well done for a great job right my vw sharan 2001 tdi curently is not heating and the water from the engine is not hot when you touch on the pipes they are just warm however the heater gage...


First time you might check the thermostat operating.


Heed of antifreeze coolant temperature!!!


The thermostat location for 2001 VW Sharan 1.9 TDI is on back of the alternator at the bottom side of the bracket.

IMPORTANT NOTE: It is NOT necessary to replace the alternator if you want to change the thermostat !!!

Thermostat checking:
1. Cold engine. Start up the engine and watch of the water temp indicator. After first value 60 Celsius Degree you still warm up the engine until the lifter (pointer) reach 80 C deg. (second mark after 60 C deg.). At this time you let engine running at idle speed and check with your hand the thermostat plastic housing and hose temperature in bottom left side of the engine. Heed of alternator driving belt and ventilator fan !!!
2. If the thermostat is good the hose must be cold until the water temp indicator reach almost 90 C deg.
3. The thermostat opening temperature is 87 C deg.
4. If the hose is already warm the thermostat is out of order.

Thermostat location, Part number: 044121113, in german - "Kuehlregle" (Price around $25):
tdisline_211.jpg


Important note: Always replace the thermostat seal, position 7 in the above picture.


Please do rate my response. Thanks!


Feb 02, 2011 | Volkswagen Touareg Cars & Trucks

1 Answer

Turbo cuts out under normal driving


That sounds like turbo overboost, ECU cutting the boost off. when you try and boost again feels like your hitting a brickwall, or when it happends feels like your hitting a brick wall...turning the car off resolves this.

Reset your ecu, disconnect the battery for 30seconds - 1minute.

Jul 19, 2010 | 2000 Volkswagen Jetta TDI

1 Answer

2001 jetta, no idle when the engine is cold, when the engine is cold the rpms are below 400, aftter a few minutes climb to 500 rpms and when is at normal operating temperature stays about 650 rpms, the...


throttle position sensor or a idle air controll valve both do the same thing but seperate part and the same price but it could be the mass air flow sensor

Mar 07, 2010 | 2001 Volkswagen Jetta TDI

1 Answer

When i drive with my polo tdi the turbo just cuts out , it normaly happens when im in 4 gear and 5 gear .. I will be traveling at 100 Km per hour en the revs is at 2000 rpm , then i wont to exculerate and...


odd... sounds like the turbo has some sensor built in that cuts it off, do u know if other golfs have something like that? Could be a heat triggered mechanism or a backpressured one? have you modified intake path at all? egs boost controller, Blow off valve, Wastegate, intercooler?

Sep 09, 2009 | 2004 Volkswagen Golf

4 Answers

Vw golf tdi turbo problems


check the turbo hoses, they are renound for dry cracking, very hard to see at first glance

Sep 06, 2009 | 2001 Volkswagen Golf

2 Answers

My 2002 Bettle TDI has very black oil after 5000 km Why?


City driving is about the hardest thing you can do to engine oil. If your primary driving is city driving it would be advisible to cut the oil change duration by a third to help keep it clean.

Jul 06, 2009 | 2002 Volkswagen Beetle Turbo S

1 Answer

Volkswagen jetta TDI engine locked up remove and replace engine


The only special tool I can think of is a big box of band-aides........

If you've changed a motor before then you know what you're doing.

Good luck, and make sure there are no kids around when you start cursing..lol

Jan 28, 2009 | 2002 Volkswagen Jetta TDI

1 Answer

Lack o fpower


Any check engine lights? If not could still be just a Mass Air flow running on minimum and won't make the Check engine come on or something more major like the wastegate valve on the turbo, and or the vacuum or or the vanes in the turbo seizing.
Any odd noises like air flowing could be a disconnected turbo pipe also.
You can try unplugging the mass air flow sensor and try it like that. If it runs better (not perfect) it could be just that. If it does let me know and I'll tell you what to do.

Oct 27, 2008 | 2000 Volkswagen Jetta TDI

5 Answers

Skoda octavia 1.9 tdi


lods have a problem it a skoda 19tdi no power when i give it the boot 80 km only turbo kicking in ok changed air flow , washed out boost valve, would u think the timing is out

Sep 25, 2008 | 2001 Volkswagen Golf

Not finding what you are looking for?
2001 Volkswagen Jetta TDI Logo

1,387 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volkswagen Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22011 Answers

yadayada
yadayada

Level 3 Expert

67911 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6817 Answers

Are you a Volkswagen Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...