farmer4babybear

   #1  

farmer4babybear

Verified VCDS User
Verified
Joined
Sep 2, 2014
Messages
4
Reaction score
4
Location
Canada
VCDS Serial number
C?ID=163435
Have 2004 VW Jetta 1.9l TDI PD. Codes 16485(implausible signal), 16515, 16683. Car has no power smokes when accelerate. Tester shows very little turbo boost. Changed air filter, cleaned snow screen, checked intake behind egr valve for carbon buildup, checked hoses up to intake for leaks, checked vnt actuator rod for free movement, checked vnt actuator with vacuum pump, checked vacuum with guage at vnt actuator while engine was idling, 23 inches of mercury. I think I may have a faulty turbo. What do you think?
 
   #2  

DrPeter

Ross-Tech Employee
Ross-Tech Employee
Joined
Jan 29, 2014
Messages
1,544
Reaction score
2,933
Location
16.4905° S, 151.7375° W
Hello,

I think I may have a faulty turbo. What do you think?

- It maybe possible that you have a failed turbo, I always like to eliminate all the other possibilities.

- Have you had a look at the Ross-Tech wiki pages? All three of these fault codes are listed there, see the special notes for the 16485 fault code, ;).

16485/P0101/000257 - Mass Air Flow Sensor (G70): Implausible Signal

16515/P0131/000305 - Oxygen (Lambda) Sensor B1 S1: Signal too Low

16683/P0299/000665 - Boost Pressure Regulation: Control Range Not Reached

- If you need more help, post us an Auto-Scan of the vehicle.

Hope this helps,

drpeter
 
   #3  

Jack@European_Parts

Gone But Not Forgotten
Joined
Jan 29, 2014
Messages
21,923
Reaction score
9,268
Location
Montgomery, NY, USA
VCDS Serial number
C?ID=57337
Is the intake restricted with delicious carbon paste spread via an EGR ?
How you fixed for holes in lifters Doc?..........don't forget to check them as it is a PD.
 
   #4  

farmer4babybear

Verified VCDS User
Verified
Joined
Sep 2, 2014
Messages
4
Reaction score
4
Location
Canada
VCDS Serial number
C?ID=163435
I found the problem, it was a leak in the connection on the engine side of the intercooler. I found it by removing the hose to the flapper motor, starting the car and holding my hand over the hose to create pressure and then listened for leaks. A lesson learned to pressure check the hoses not just visually check the hoses. Thank you to those who have commented I appreciate the help.
 
   #5  

farmer4babybear

Verified VCDS User
Verified
Joined
Sep 2, 2014
Messages
4
Reaction score
4
Location
Canada
VCDS Serial number
C?ID=163435
I found the problem it was a leak at the connection on the engine side of the intercooler. This engine has very little carbon in the intake and hopefully I can avoid the camshaft and lifter problem. Have been faithful at oil changes using Amsoil European formula oil. My wife commutes 100 miles a day and the car has 440,000 km on it. Thank you for your input.
 
   #6  

farmer4babybear

Verified VCDS User
Verified
Joined
Sep 2, 2014
Messages
4
Reaction score
4
Location
Canada
VCDS Serial number
C?ID=163435
I found that it was a leak at a connection on engine side of intercooler. Thank you for your help
 
Top