Don't have an account yet? You can create one. As a registered user you have some advantages like theme manager, comments configuration and post comments with your name.
Just looking for any advice on my Avant. When the car is stood still my idle wonders slightly and id like to get to the bottom of why this is happening?
Also ive got the issue which is mentioned on this forum a few times which is at around 3k revs and in 3rd or 4th gear my Audi hits a bit wall and feels my turbo is cutting out. I have good knowledge of the Vacuum system and for piece of mind ive replaced a faulty vacuum pump, EGR Valve, N75 Solonoid and Control unit along with the MAF sensor. So my thoughts are its either the Turbo has a fault? Possible Wastegate stuck open? or one if not both of my Cats are chocked up with soot? As much as i love this car this brick wall effect is really spoiling my driving expierience and ive even thought of flogging it even though its only done 128k.
Any help would be great.
Chris
GT500 Audi Nut
Joined: Apr 29, 2007
Posts: 68
Posted:
Fri Jan 27, 2012 10:23 am
Hi Chris.
Idle problem will moat likely be mixture too weak. You need vagcom to check it. Mg/per stroke is the measuring block. Should be 4.0.
Other fault is blocked cats. Just remove the innards. No mot problem as they can't test a diesel cat.
It will smoke like hell as the soot will be built up from lack of air speed through the system. Soon goes.
Hth
gib Camped on the site
Joined: Jan 18, 2005
Posts: 311
Posted:
Fri Jan 27, 2012 2:26 pm
Mg/per stroke is the measuring block. Should be 4.0.
Where did you get that figure from??
duff_audi Needs to get out more
Joined: Dec 02, 2007
Posts: 121
Posted:
Fri Jan 27, 2012 3:18 pm
My idle would wander a bit and i fixed it buy doing the EGR blanking plate or disconnect the vacuum to the EGR / block it up
Its a quick way to test that the EGR is causing it or not
_________________ Silver A6 TDI 140bhp SE Avant , S6 8*17" wheels, S4 Black interior , Audi 100 Audi sport steering wheel ,cruise fitted by bladerunner , Dual HID`55w/35w , 385k miles and still trucking
GT500 Audi Nut
Joined: Apr 29, 2007
Posts: 68
Posted:
Fri Jan 27, 2012 5:05 pm
gib wrote:
Mg/per stroke is the measuring block. Should be 4.0.
Where did you get that figure from??
When you hover over the block the full vagcom version gives you the value it should be.
Hth
spink Bandwidth Buster
Joined: Aug 12, 2006
Posts: 714
Posted:
Fri Feb 03, 2012 11:43 pm
GT500 wrote:
gib wrote:
Mg/per stroke is the measuring block. Should be 4.0.
Where did you get that figure from??
When you hover over the block the full vagcom version gives you the value it should be.
Hth
is that block 13 you are refering to?
spink Bandwidth Buster
Joined: Aug 12, 2006
Posts: 714
Posted:
Fri Feb 03, 2012 11:45 pm
GT500 wrote:
gib wrote:
Mg/per stroke is the measuring block. Should be 4.0.
Where did you get that figure from??
When you hover over the block the full vagcom version gives you the value it should be.
Hth
is that block 13 you are refering to?
GT500 Audi Nut
Joined: Apr 29, 2007
Posts: 68
Posted:
Sat Feb 04, 2012 9:01 am
I think so, was a couple of months ago when I adjusted mine.
spink Bandwidth Buster
Joined: Aug 12, 2006
Posts: 714
Posted:
Mon Apr 09, 2012 2:59 pm
I am having idle issues with an a6 of mine(only done 100k and has been off the road for a couple of years until i got hold of it),all the info I can find on the net refers to the mg/str being around zero and no more than plus or minus 2 from each other.It sits at between 756 and 730rpm,doesn't sound much but is very annoying,changes speed about every 7 seconds or so.No fault codes are stored, can anyone shed anymore light on this?
GT500 Audi Nut
Joined: Apr 29, 2007
Posts: 68
Posted:
Tue Apr 17, 2012 7:28 am
too weak.
Mine was 0.9. get it to 4.0.
spink Bandwidth Buster
Joined: Aug 12, 2006
Posts: 714
Posted:
Tue Apr 17, 2012 10:20 am
I am not sure we are talking about the same block here as my other a6 sits around zero also and another one I was working on last week.
I think I have found the problem with mine,minute metal fragments in the injector pump. Apparently they can collect on 2 magnets inside the top cover and cause my exact problem.Will take it apart in the next few days
GT500 Audi Nut
Joined: Apr 29, 2007
Posts: 68
Posted:
Tue Apr 17, 2012 2:51 pm
My old man's has never been touched. His is 4.0. Runs spot as mine does now.
Hope the magnet clean sorts yours.
spink Bandwidth Buster
Joined: Aug 12, 2006
Posts: 714
Posted:
Tue Apr 17, 2012 3:09 pm
GT500 wrote:
My old man's has never been touched. His is 4.0. Runs spot as mine does now.
Hope the magnet clean sorts yours.
this is block 13 I am talking about,is that the same one?the other 2 a6s I have looked at run 100%,I have seen something regarding mg/str in block 5 or 6,could that be the one you mean?
spink Bandwidth Buster
Joined: Aug 12, 2006
Posts: 714
Posted:
Tue Apr 17, 2012 3:09 pm
GT500 wrote:
My old man's has never been touched. His is 4.0. Runs spot as mine does now.
Hope the magnet clean sorts yours.
this is block 13 I am talking about,is that the same one?the other 2 a6s I have looked at run 100%,I have seen something regarding mg/str in block 5 or 6,could that be the one you mean?
GT500 Audi Nut
Joined: Apr 29, 2007
Posts: 68
Posted:
Tue Apr 17, 2012 6:36 pm
I'll plug mine in on thursday and let you know.
AndyS2 Inexperienced
Joined: May 05, 2003
Posts: 35
Location: Sheffield , England
Posted:
Wed Apr 18, 2012 6:58 am
My block 13 has minus numbers in! What does this mean??
_________________ 1991 Audi S2
1997 Audi A6 2.5TDi quattro avant AEL
gib Camped on the site
Joined: Jan 18, 2005
Posts: 311
Posted:
Wed Apr 18, 2012 7:18 am
Block set 13 compares all injectors to #3.
Surely mg/stroke , -IQ#'s are around block sets 7-9???????
View next topic View previous topic
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum You can attach files in this forum You can download files in this forum
Forum FAQ
Search
Memberlist
Usergroups
Profile
Log in to check your private messages
Log in
