[boki]

Cry for help if anyone knows !!!!!!!
2 months ago I bought the Touareg 2.5 TDI R5
From the first morning I had two problems when the car is cold!
First with the throttle in the first few seconds .... I start the car and working on 650rpm depress the accelerator pedal full but nothing happens after 5-6sec. car himself added on one second throttle to 1600rpm then let throttle and back on the 650rpm more 5-6sec .... after about ten-fifteen seconds normally begin to receive throttle .... BUT !!!!
Second problem is more serious, when I throw automatic transmision in D or R and press the accelerator pedal nothing happens, the car will not go, nicely put gear and pulling at idle but will not receive the throttle ... after 3-5 min. car normally begin to receive throttle in D or R and continues to drive without any problem ...
I'm a mechanic and I have my own car service.
On VCDS diagnostic tool but no one module no errors
I replaced the engine electronics and gearbox electronics, MAF and MAP sensor,but still have a problem ...
All injectors on VCDS + - 0,50mgh,every temperatures on engine and gearbox is normal on VCDS....

 

[4ePikanini]

check on VCDS if throttle percentage corresponds to what you are physically doing.

 

[boki]

Yes I check throttle parameter and allother parameters,and every parameter follow request and actual....
Can maybe PD injector make similar problem ????

 

[Xeno555]

two problems when the car is cold!
First with the throttle in the first few seconds .... I start the car and working on 650rpm depress the accelerator pedal full but nothing happens after 5-6sec. car himself added on one second throttle to 1600rpm then let throttle and back on the 650rpm more 5-6sec .... after about ten-fifteen seconds normally begin to receive throttle .... BUT !!!!

Second problem is more serious, when I throw automatic transmision in D or R and press the accelerator pedal nothing happens, the car will not go, nicely put gear and pulling at idle but will not receive the throttle ... after 3-5 min. car normally begin to receive throttle in D or R and continues to drive without any problem ...
I'm a mechanic and I have my own car service.
On VCDS diagnostic tool but no one module no errors

You need to get it in the state as described above. Then VCDS the throttle position sensor. Does it reflect your throttle and still no response from engine?

I.E.

Push on throttle 50% and VCDS says 50% however your engine is still idle.

Then I would suspect the 'throttle' servo (it's FBW)

#2

If it shows no throttle on VCS, then it's probably the electronic pedal.

I think you need to solve this first before moving on to transmission. (though fixing this may cure other problem)

OR backwards. Your transmission is cutting throttle (traction control) sensors/tires.

:wink2:

 

[noobytoogy]

Then I would suspect the 'throttle' servo (it's FBW)

@ Xeno:

English is clearly not the OP's first language, but it is mine and if I didn't get "FBW", how will he?

@ Boki: I think he meant "fly by wire" - in other words it's an electronic component.

 

[Xeno555]

Fly By Wire.

 

[boki]

VCDS show good parameters for acellerator pedal sensor,when I press 10% show 10%on vcds,when I pres on 50% show 50% on vcds,....,.....,....throttle on my touareg is vacum not electrical.
And I try with other acellerator pedal sensor but problem still !

 

[dragline1570]

VCDS show good parameters for acellerator pedal sensor,when I press 10% show 10%on vcds,when I pres on 50% show 50% on vcds,....,.....,....throttle on my touareg is vacum not electrical.
And I try with other acellerator pedal sensor but problem still !

Your throttle is electric and its position is sent to the ECU to tell it how the injectors are to deliver fuel.
That Vacuum butterfly on the intake is just a anti shudder vavle VW call it I think but all it really does is shut the air down to stop the engine.
It doesn't move during normal driving.
Diesels don't have butterfly's as engine revs are controlled by fuel delivery.


regards
Drag

 

[Xeno555]

Like above. ASV (anti Shutter Valve). Since diesels only need:

Fuel
Compression
Air

When you shut it off, the ASV closes to prevent "run on".

I think you have your answer now.

 

[4ePikanini]

check if your ASV behaves like this

 

[boki]

All summer I no have problem and car drive just fine.....BUT ....!!!!
Cold days is come and this problem slowly comes again....all time when temperature is above 0c. no problem...but if lower then 0c. problem come.......I am check everything on this engine but I can't find defect.....
I only discovered this when I simulate engine temperature with resistor on -15. or -20c. then everything is GREAT,engine not have problem at all and have much better response on throttle from idle RPM.....and of course......the car go immediately when I push throttle !!!!!!!

 

[Mariussafta]

Cry for help if anyone knows !!!!!!!
2 months ago I bought the Touareg 2.5 TDI R5
From the first morning I had two problems when the car is cold!
First with the throttle in the first few seconds .... I start the car and working on 650rpm depress the accelerator pedal full but nothing happens after 5-6sec. car himself added on one second throttle to 1600rpm then let throttle and back on the 650rpm more 5-6sec .... after about ten-fifteen seconds normally begin to receive throttle .... BUT !!!!
Second problem is more serious, when I throw automatic transmision in D or R and press the accelerator pedal nothing happens, the car will not go, nicely put gear and pulling at idle but will not receive the throttle ... after 3-5 min. car normally begin to receive throttle in D or R and continues to drive without any problem ...
I'm a mechanic and I have my own car service.
On VCDS diagnostic tool but no one module no errors
I replaced the engine electronics and gearbox electronics, MAF and MAP sensor,but still have a problem ...
All injectors on VCDS + - 0,50mgh,every temperatures on engine and gearbox is normal on VCDS....

Hello... I have same problem like you ... do you have any solution for this ? Or i need to buy 2l gasoline and a lighter ?

 

[TommiT]

This thread is several years old. Do not expect an answer from boki!

 

[Mariussafta]

This thread is several years old. Do not expect an answer from boki!

I find the problem, camshaft gear is slide from position, because they don't have lock pin , i put back on possition with timing lock tools and I thigten the screew more hard. Now is working perfect.

 

[TommiT]

Well done!

 

[Twisterptk]

Could you explain again what you have done please as I have the same issue

 

[Mariussafta]

Could you explain again what you have done please as I have the same issue

Take car and before check intake flap , and throttle pedal . If this is ok , go to mechanic and check with timing tools kit if your engine is ok, possible to have same problem like me.

 

[Jaunene]

I have the same problem with my 2.5 2005 touareg, press on ecelerator and does not want to move for few minutes, after a while it goes and then moves perfectly through all gears. What can the problem be plsssssss

 

[jaunenehotmail]

Could you explain again what you have done please as I have the same issue

did u getit fixed? i have the same problem!!!!! car is now standing for almost 6 months!!! Fixed the Wiring harness in gearbox, serviced< put in new gearbox oil, evn put in new Vacume duel fuel pump!!!

 

[jaunenehotmail]

I find the problem, camshaft gear is slide from position, because they don't have lock pin , i put back on possition with timing lock tools and I thigten the screew more hard. Now is working perfect.

i have the same problem!!!!!! so i must fix the timing!!!