[s-cars] I want my MPG

Thu Jun 26 10:17:01 PDT 2008

Teddy,

The VAG-COM should give you the load number as you drive it.
This is the output of the MAF.
Fuel pressure should be checked while driving (hard to do) or while idling, 
but apply vacuum and pressure to the regulator alternately and note pressure 
changes.
Check for leaks...I have never had much luck with this procedure, but the 
write up is out there.

Do all of them in any order. They are all pretty simple to do.

Mark
----- Original Message ----- 
From: "Theodore Chen" <tedebearp at yahoo.com>
To: "s-car-list" <s-car-list at audifans.com>
Sent: Thursday, June 26, 2008 1:07 PM
Subject: Re: [s-cars] I want my MPG

>i installed a new set of F5DP0R plugs and the misfire is gone.  the car 
>pulls cleanly to redline at WOT, so i can rule out ignition coils and POS.
>
> however, block 9, O2 sensor adaptation, is still low, at 71 now.  the 
> engine is running great, and if i hadn't already used VAG-COM on the car, 
> i wouldn't know there was anything wrong.
>
> i'm debating whether to replace the O2 sensor.  the shop said the O2 
> sensor was fine, and the low O2 sensor adaptation reading seems to be 
> consistent with the low number of crossings in the lambda readings (which 
> are averaging over 1).
>
> bentley suggests the following:
> 1. check O2 sensor (road test, presumably to get everything hot)
> 2. check MAF
> 3. check fuel pressure
> 4. check for leaks in intake tract
>
> which would you do first?  i already did the road test.
>
> ----- Original Message ----
> From: Theodore Chen <tedebearp at yahoo.com>
> To: David Forgie <forgied at shaw.ca>; s-car-list <s-car-list at audifans.com>
> Cc: Mark Strangways <StrangConst at rogers.com>
> Sent: Tuesday, June 17, 2008 8:14:47 PM
> Subject: Re: [s-cars] I want my MPG
>
> by the way, anybody know where to find a description of the other groups 
> in VAG-COM?  group 003 showed the last block with the label "temperature" 
> and the value was between 58 and 65 degrees C.  is this intake charge 
> temperature?  a quick read of bentley turned up nothing about group 003 in 
> bentley - or any group other than 000, for that matter.
>
> ----- Original Message ----
> From: Theodore Chen <tedebearp at yahoo.com>
> To: David Forgie <forgied at shaw.ca>; s-car-list <s-car-list at audifans.com>
> Cc: Mark Strangways <StrangConst at rogers.com>
> Sent: Tuesday, June 17, 2008 7:22:19 PM
> Subject: Re: [s-cars] I want my MPG
>
> i just used VAG-COM on the car.  it's reading 206, which according to 
> bentley, is within spec (range 184-215 and appears to correlate to 185-220 
> deg. F).  i was looking at group 000, block 1.  bentley says this field is 
> the engine coolant temperature.
>
> here's group 000:
> 206 022 080 128 098 129 056 129 066 037
>
> note that block 9 has a value of 66.  this is O2S adaptation, and normal 
> range is 100-141.  the car was pretty hot after a 20 mile trip on the 
> freeway, and a short stop at the store.  i got home and left it running 
> while i ran the codes.  block 8, O2S control, is 128 (spec 123-133).  i 
> already tightened the clamps on the samco hose between the MAF and the 
> turbo.  not sure what's going on here.
>
> shop said the O2 sensor was OK, but maybe i should replace it?
>
> -t.
>
> ----- Original Message ----
> From: David Forgie <forgied at shaw.ca>
> To: s-car-list <s-car-list at audifans.com>
> Cc: Mark Strangways <StrangConst at rogers.com>
> Sent: Thursday, June 12, 2008 8:08:01 AM
> Subject: Re: [s-cars] I want my MPG
>
> Mark:  I know you suggested the temp sensor before.  That is why I made my 
> earlier post,
> regarding the location and function of the G62 temp sensor:
>
> http://www.audifans.com/pipermail/s-car-list/2008-June/067066.html
>
> I think that your temp sensor suggestion was an excellent one and that
> Teddy should pursue (sp?) that one over all others (at least initially).
>
> Dave F.
>
> ----- Original Message -----
> From: Mark Strangways <StrangConst at rogers.com>
> Date: Thursday, June 12, 2008 7:35 am
> Subject: Re: [s-cars] I want my MPG
> To: David Forgie <forgied at shaw.ca>, s-car-list <s-car-list at audifans.com>
>
>> Yeah well I also suggested the water temp sensor about 12 hours
>> ago....But I did not do it with such finesse I suppose.
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
>
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
> http://www.audifans.com/mailman/listinfo/s-car-list
>
> 