Hello to all.
I've a golf mk7 gtd, engine EA288 2.0 tdi 184 "CUNA".
I have some issues in the car and VW can't solve my problem.
I found that in cylinder 3 primary injecton is advanced 12º in idlle.
In movement, just in deceleration, the variation is between -12º to -18º.
In the other cylinders is remais 0º.
With the help of vag-com 15.7 i found that in the module "engine":
location 122, the cylinder head position controller main combustion 3 bank 1 is "0"; in the other 3 cylinders is "16";
location 140, the cylinder head press sensor 3 bank 1 primary combustion position is "-12º"; in the other cylinders is "0";
location 141, the cylinder head press sensor 3 bank 1 prymary combustion Std variation is "0,24º"; in the other cylindres is "0";
location 149, the cylinder 3 bank 1 primary combustion position is "-12º"; in the other cylindres is "0º";
location 160, the cylinder head press sensor 3 bank 1 is "6.8 us"; in the other cylindres is "0 us";
I don't have a single DTC or error.
The car runs fine.
The only thing i note is that in deceleration, for example in 4th gear, i acelerate to 2000 rpm, i retire the foot from the acelerator, when rotation starts to decrease, between 1800 rmp and 1200 rpm, i hear the engine knocking; It does the same in the other gears, but the best to hear is the 4th gear with the window open.
I can realy hear the car (toc, toc, toc, toc.....toc); if i acelerate during the process, the knocking noise stops imediatly.
VW changed the 4 injectors and the ECU has been changed too.
The car stills the same.
What can be the cause?
Does anyone have the same issue?
Thank you all and sorry for my english (bad english)
I've a golf mk7 gtd, engine EA288 2.0 tdi 184 "CUNA".
I have some issues in the car and VW can't solve my problem.
I found that in cylinder 3 primary injecton is advanced 12º in idlle.
In movement, just in deceleration, the variation is between -12º to -18º.
In the other cylinders is remais 0º.
With the help of vag-com 15.7 i found that in the module "engine":
location 122, the cylinder head position controller main combustion 3 bank 1 is "0"; in the other 3 cylinders is "16";
location 140, the cylinder head press sensor 3 bank 1 primary combustion position is "-12º"; in the other cylinders is "0";
location 141, the cylinder head press sensor 3 bank 1 prymary combustion Std variation is "0,24º"; in the other cylindres is "0";
location 149, the cylinder 3 bank 1 primary combustion position is "-12º"; in the other cylindres is "0º";
location 160, the cylinder head press sensor 3 bank 1 is "6.8 us"; in the other cylindres is "0 us";
I don't have a single DTC or error.
The car runs fine.
The only thing i note is that in deceleration, for example in 4th gear, i acelerate to 2000 rpm, i retire the foot from the acelerator, when rotation starts to decrease, between 1800 rmp and 1200 rpm, i hear the engine knocking; It does the same in the other gears, but the best to hear is the 4th gear with the window open.
I can realy hear the car (toc, toc, toc, toc.....toc); if i acelerate during the process, the knocking noise stops imediatly.
VW changed the 4 injectors and the ECU has been changed too.
The car stills the same.
What can be the cause?
Does anyone have the same issue?
Thank you all and sorry for my english (bad english)