Golf 6 1.6 tdi 105 hp Hesitation Problem

[carmageddon]

hi

i have an unknow problem on this car.

due to breakage HP pump they were changed : injectors new (adapted with vas), hp pump (valeo), diesel filter, rail, rail pressure sensor, rail pressure regulator, all low pressure pipeline, low pressure pump, tank wash...the car have dieselgate software 03L997557M_9983, i have vcp genuine and old software 03L906023B_5863 but i dont know the procedure to restore old file...no comment for vcp support!

i send video of the problem on YT : https://www.youtube.com/watch?v=v0xJLDlRH1o

the engine have hesistation always between 1400 and 200 rpm, if someone can solve this problem can contact me please

Thanks in advance

[icezero2010]

hi

i have an unknow problem on this car.

due to breakage HP pump they were changed : injectors new (adapted with vas), hp pump (valeo), diesel filter, rail, rail pressure sensor, rail pressure regulator, all low pressure pipeline, low pressure pump, tank wash...the car have dieselgate software 03L997557M_9983, i have vcp genuine and old software 03L906023B_5863 but i dont know the procedure to restore old file...no comment for vcp support!

i send video of the problem on YT : https://www.youtube.com/watch?v=v0xJLDlRH1o

the engine have hesistation always between 1400 and 200 rpm, if someone can solve this problem can contact me please

Thanks in advance

check rpm in ecu .

i dont think its rail problem

also big problem is pressure sensor in pipe direct before engine


the car has two

but mostly u have than also maf problems when u drive 60 kmh and go in fuel cut off for more than 10sec

and test unplug egr

also check exhaust pressure

[carmageddon]

the car stopped for the damaged hp pump...before this the car had nothing.

i check rail pressure, maf, rpm, timing belt ecc...no problem and no dtc.

the car work perfect without this issue only when dpf regenetates

[icezero2010]

Ah ok than exhaust pressure ;) . Dpf is clogged or the egr hang

[carmageddon]

egr is new and working (not excluded/not closed) and dpf work regularly

[kospoz]

Remove O2 sensor put a pressure gauge and go for a ride when you will have the problem take a look to the gauge and see if you have back pressure.

[carmageddon]

problem solved by excluding egr on file :-)