2003 Volkswagen Golf Logo
Posted on Feb 06, 2013
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I have a mk 4 golf tdi 1.9 under extreme pressure goes into limp mode at about 3000 revs in 3 gear cars been chiped and remapped ive changed boost control valve agr valve changed temp sensor and so on changed most of my pipes to silicon to try abd rectify the promblem and it still happens any ideas

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  • Johann Smit
    Johann Smit Nov 19, 2017

    One of the thin vacuum pipes must be torn and the minute you go into higher/full boost the ECU doesn't get the requested pressure from the turbo and to protect the tubo from overboosting it puts the car into limp mode, The limp mode only resets when you switch the car off and back on again.

    Trace all the thin 6mm vacuum pipes and you will find your leak.

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2 Answers

WelderArc

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  • Posted on Nov 19, 2017
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Possible boost leak

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  • Posted on Feb 07, 2013
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Have you changed the MAP sensor (on the intercooler)?
If not, thry to replace it with 3bar sensor, stock is 2.5bar!

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Anonymous

  • 1 Answer
  • Posted on Jan 25, 2010

SOURCE: 05 Golf 1.9D TDI engine code; BKC

i have problem vith car,my car is golf v 1.9 tdi motor code is BKC...number of code for problem is P0642 ("Sensor Reference Voltage "A" Circuit Low")

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ElDopa

ElDopa

  • 295 Answers
  • Posted on Aug 17, 2009

SOURCE: golf gt tdi 2.0 140 bhp mk 5 - esp light

When there's something wrong with the brake pressure that handbrake warning light comes on.

The ESP warning light could be caused by a lot of things, but most likely it's a dirty fuel filter. Don't take my word for it though, just go to the VW dealer and have it read the faultcodes from the ECU, which should point you/them in the right direction.

Alternatively, when you have the right equipment (= VAGCOM + cable) and knowledge, you or a friend yould diagnose the ECU yourself.

From the sounds of it, you'll need a small service (air filter and oil filter change, etc.) anyways. Don't forget to reset the ECU (or dis- and reconnect the battery) afterwards to erase the faultcode from memory (when there's still something wrong, it'll return soon enough).

You might get lucky with a small service :)

Anonymous

  • 1071 Answers
  • Posted on Aug 20, 2009

SOURCE: Have the same problem...

check for vacuum leaks and clean the throttle

steve_e_uk

steve morris

  • 1675 Answers
  • Posted on Mar 21, 2010

SOURCE: I have a golf mk 4 gt tdi on a s reg '98' that i

hi this sounds like you have a broken engine mount or rubber bushing has worn , to test this, put handbrake fully on as hard as you can get it, then start the car, put it in 2nd gear, and jump the clutch a bit, if you stand at one side of the car watching the engine to see if it jerks forward or to the side badly, this will show you have a mount gone, obviously get a friend or someone to do the clutch thing as you cant do it at the same time lol, hope this helps

Anonymous

  • 1 Answer
  • Posted on Jun 08, 2010

SOURCE: Reduced power when driving Mk4 Golf TDI

Does this happen with a lot of the tdi's? Has anyone found a solution yet? Got the same problem with a 2000 tdi 90bhp stock 90000miles.

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0helpful
1answer

Hi i have a mk 4 golf gt tdi witch has been going in to limp mode now its got worse!!! When i put my foot down the turbo kicks in the cuts out then keeps doing the same process!! Ive been told to change...
is it ur turbo or are u missfiring?
Read full answer
Nov 15, 2011 • 1999 Volkswagen Golf
0helpful
1answer

Hi I've got a golf 2.0 tdi, when on motorway I get loss of power when turn engine off and start back up it can be fine for bit then happens again. Any ideas?
In your case the turbocharger is responsible for engine losing power.
The car goes in "limp home" mode!!!
After scanning the EDC engine control module with a VAS, VAG-Com or KTS -BOSCH diagnosis tool you will find this: Fault code: P1557 - Charge pressure control. Value above upper control limit static, (Turbo Boost pressure control exceeded).
1. Engine stopped and ignition switched 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 adjusts the turbine vanes, the charge air pressure increase too much and ECM (Engine Control Module) goes in "limp mode" = engine protection software. As a result the "limp home" mode engine still runnings until you turn the engine off (ignition switch off) and back on, when the "limp mode" is deactivated, but the fault still remain in ECM 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.
Read full answer
Jul 10, 2011 • Volkswagen Golf Cars & Trucks
4helpful
1answer

I have a 2001 audi a4 130 tdi some times wen reving hard turbo cuts out and lots of black smoke comes from exuarst and car will not rev over 3000 revs
In your case the turbocharger is responsible for engine losing power.
The car goes in "limp home" mode!!!
After 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
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 home" 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 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.
Read full answer
Apr 19, 2011 • Audi A4 Cars & Trucks
0helpful
1answer

2001 A4 TDI, 120000 miles, sometimes, maybe once a week when i start it from cold and it only happens below 3rd gear, usually in 2nd gear the car starts to shake and the revs die down. i can drive on...
In the most cases for Audi A4 1.9 TDI the turbocharger is responsible for engine losing power.
The car goes in "limp home" mode!!!
After 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
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 home" 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 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.
Read full answer
Dec 08, 2010 • 2002 Audi A4
0helpful
1answer

Car lost power and speed
For VW Golf TDI:
If the car goes in "limp mode"!!!
After scan the EDC-15P engine control module with a VAG-COM or BOSCH KTS diagnostic tool connected to the data link connector of the car, (placed on central console under A/C controls behind a plastic cover), you will find this: Fault code: P1557-Turbo Boost pressure control exceeded
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 ECM (engine control module) 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 still remain in ECM 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.
Read full answer
Jun 04, 2010 • Volkswagen Golf Cars & Trucks
1helpful
2answers

At 2500 - 3000 revs in top gear my golf turbo loses power
Sounds like the car is going into limp mode, and then resuming normal operation the next time you start it. This is probably due to an overboost or under boost situation. If this is the case, the car's computer can't effectively control the boost the turbo is producing, so it just "turns" the boost off. Ask the shop what the engine code was specifically, and then compare it to VW specific codes. ( google "VW OBD codes"). I'm betting the code is either P1556 (boost control negative deviation, underboost), or P1557 (boost control positive deviation, overboost). Proper diagnosis with VW specific software is half the battle. The rest is methodical troubleshooting by you or your shop so you don't replace parts that don't fix the problem. No offense intended, but it sounds like you need to bring your car to a shop that knows VW's. Sorry I'm not more helpful, but without more info, I'm just taking a guess. I've actually had this problem with my Tdi, and the fix was cleaning the intake manifold and a slight turbo actuator adjustment. But, in your case, several things could cause this which is why proper troubleshooting is important. Hope this helps.
Read full answer
Oct 31, 2017 • 1998 Volkswagen Golf
1helpful
1answer

2001 vw golf 1.9 gt tdi miss fire
if you have a pd engine and you say that it miss fires i would change the wire loom to the injectors if it persists the air flow meter is on the blink, has you car ever gone into a limp mode status were you couldn't rev then check your turbo ,this may sound strange but just had a 150bhp tdi which was remapped with a very simular problem
Read full answer
Apr 07, 2009 • 2001 Volkswagen Golf
0helpful
1answer

I have a 2003 jetta TDI with 150,000 milea, within the last few weeks the engine sputter when it goes up hills, it looses power, and there is dark black exhaust comming from the tailpipe. Alan Hutchings
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"!!!
Read full answer
Feb 22, 2009 • 2003 Volkswagen Jetta TDI
2helpful
1answer

Vw caddy 2001 TDI
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"!!!
Read full answer
Oct 11, 2008 • 2001 Volkswagen Jetta TDI
5helpful
2answers

Audi a4 1.9tdi
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"!!!
--------------------------------------------------------------------------------------------------------------------------------------------
It is a certified solution. Last year in July I made this turbocharger cleaning on my car - 2000 Audi A4 1.9 TDI 116 HP. After 25000 km my car runs like an authentic AUDI 1.9 TDI.
Read full answer
Jun 03, 2008 • 2000 Audi A4
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Hi i have a mk 4 golf gt tdi witch has been going in to limp mode now its got worse!!! When i put my foot down the turbo kicks in the cuts out then keeps doing the same process!! Ive been told to change...

  • 1999 Volkswagen Golf

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