Injectors or cold weather ? (Its 10C)

niedzial1983

Registered User

Joined

Aug 4, 2015

Messages

337

Reaction score

136

Points

43

• Oct 25, 2016

• #1

Is there any way of checking injectors in vagcom ? Or any other way?

Its cold outside so it could be the reason i can see smoke ?



2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

 

B5NUT

Well-Known Member

VCDS Map User

Joined

Feb 6, 2010

Messages

5,560

Reaction score

1,606

Points

113

Location

Darlington

• Oct 25, 2016

• #2

looks like classic injector issues, was the engine warm at the time of the video?

 

niedzial1983

Registered User

Joined

Aug 4, 2015

Messages

337

Reaction score

136

Points

43

• Oct 25, 2016

• #3

No. It was probably 5 min drive from stone cold

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

 

B5NUT

Well-Known Member

VCDS Map User

Joined

Feb 6, 2010

Messages

5,560

Reaction score

1,606

Points

113

Location

Darlington

• Oct 25, 2016

• #4

Get the engine up to temp and allow it to idle, if lots of smoke comes out of the back then the injectors are failing. if it's clear then is just water/condensation from the exhaust.

 

M

Mollygoogle

Registered User

Joined

Aug 21, 2012

Messages

312

Reaction score

17

Points

18

Location

Darlington

• Oct 29, 2016

• #5

Looks like injectors to me. I've put up with it for 13000 miles but my replacement injectors will be here in the next couple of days

 

niedzial1983

Registered User

Joined

Aug 4, 2015

Messages

337

Reaction score

136

Points

43

• Oct 29, 2016

• #6

Happy to say that with engine up to temp its spot on , no smoke at all . That morning was really cold and the lights from the car behind didnt help as it made the condensation looked much more whiter then it was . Thanks all !

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

 

RAV tdi

Audi A6 3.0 TDI '05 - Audi 100 2.8 quattro '91

Joined

Nov 14, 2015

Messages

39

Reaction score

13

Points

8

• Oct 29, 2016

• #7

You can check injectors in vagcom.
For that, you enter in "1 engine" and after you enter in "meas. blocks".
You have to write 72 (injector Nº 1)
73 (injector Nº 2)
74 (injector Nº 3)
75 (injector Nº 4)
76 (injector Nº 5)
77 (injector Nº 6)
and it will show values.
First row, the values can't be smaller than -45 ms (-46 is smaller). For othes cases from -30 ms, injectors start giving problems.
The symptoms of faulty injectors are:
Smoke with hot engine.
High oil level.
Motor lock for a second when you start with hot motor.

 

• 

Reactions: niedzial1983

niedzial1983

Registered User

Joined

Aug 4, 2015

Messages

337

Reaction score

136

Points

43

• Oct 31, 2016

• #8

RAV tdi said:

You can check injectors in vagcom.
For that, you enter in "1 engine" and after you enter in "meas. blocks".
You have to write 72 (injector Nº 1)
73 (injector Nº 2)
74 (injector Nº 3)
75 (injector Nº 4)
76 (injector Nº 5)
77 (injector Nº 6)
and it will show values.
First row, the values can't be smaller than -45 ms (-46 is smaller). For othes cases from -30 ms, injectors start giving problems.
The symptoms of faulty injectors are:
Smoke with hot engine.
High oil level.
Motor lock for a second when you start with hot motor.

Click to expand...

Is this on cold or up to temperature engine ?

2006 Audi A6 3.0TDI quattro sline le mans | Daytona Grey Pearl

 

RAV tdi

Audi A6 3.0 TDI '05 - Audi 100 2.8 quattro '91

Joined

Nov 14, 2015

Messages

39

Reaction score

13

Points

8

• Nov 1, 2016

• #9

Is better done with the service temp engine, but you can do it with off motor and you look at last values.
Perfect value is 0 but (+9) ( -9 ) too it is ok.

Example