S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

Possible reasons for bad gas mileage....?

Thread Tools
 
Search this Thread
 
Old Jan 10, 2006 | 04:27 PM
  #1  
4Bidden's Avatar
Thread Starter
AudiWorld Senior Member
 
Joined: Jan 2006
Posts: 998
Likes: 0
Default Possible reasons for bad gas mileage....?

I have a secondary injection problem (fault codes) and there is a leak in my vacuum hose that goes from the booster to the abs. Could any of this affect gas mileage?
Reply
Old Jan 10, 2006 | 04:40 PM
  #2  
quickaudi:STFA's Avatar
AudiWorld Super User
 
Joined: Dec 2004
Posts: 9,982
Likes: 1
Default

I'm always wary that any fault codes kill gas mileage. I'd say yes.
Reply
Old Jan 10, 2006 | 04:42 PM
  #3  
4Bidden's Avatar
Thread Starter
AudiWorld Senior Member
 
Joined: Jan 2006
Posts: 998
Likes: 0
Default I only get 200miles before the light comes on...Thats a full 91 octane tank...

I only drive about 4 miles a day to work and don't usually floor it, although I occasionally do. I should still get atleast 250-300 miles before the light comes on.
Reply
Old Jan 11, 2006 | 01:25 PM
  #4  
quickaudi:STFA's Avatar
AudiWorld Super User
 
Joined: Dec 2004
Posts: 9,982
Likes: 1
Default

no other codes? does your car even get warm?
Reply
Old Jan 11, 2006 | 03:17 PM
  #5  
4Bidden's Avatar
Thread Starter
AudiWorld Senior Member
 
Joined: Jan 2006
Posts: 998
Likes: 0
Default I warm up the car for 5 min every morning....

I've got a few other fault codes....

brake booster mechanical failure
Steering sensor angle
incorrectly coded module

But I don't think these would affect gas would they?
Reply
Old Jan 12, 2006 | 08:21 AM
  #6  
quickaudi:STFA's Avatar
AudiWorld Super User
 
Joined: Dec 2004
Posts: 9,982
Likes: 1
Default

Incorrectly coded module? ECU? TCU (if you are a tip)?
Reply
Old Jan 13, 2006 | 04:49 AM
  #7  
4Bidden's Avatar
Thread Starter
AudiWorld Senior Member
 
Joined: Jan 2006
Posts: 998
Likes: 0
Default Re: Incorrectly coded module? ECU? TCU (if you are a tip)?

I am a tip. The incorrectly coded module is referring to the ABS system. Any suggestions?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
AndrewT1993
A4 (B9 Platform) Discussion
26
Dec 16, 2016 04:18 PM
roseyman87
S4 / RS4 (B5 Platform) Discussion
6
Oct 5, 2009 05:50 AM
4Bidden
S4 / RS4 (B5 Platform) Discussion
11
Feb 14, 2006 11:20 AM
corll_S4
S4 / RS4 (B5 Platform) Discussion
3
Apr 5, 2005 02:50 PM
AZSantorin
Audi Original "S" Cars
3
Aug 19, 2003 06:15 PM




All times are GMT -8. The time now is 10:12 PM.

story-0
New Audi A6 Allroad Is The Market's Coolest Wagon: 9 Things to Know

Slideshow: Audi's latest A6 Allroad gets RS-style fenders, real off-road hardware, and enough personality to stand out in a market obsessed with crossovers.

By Pouria Savadkouei | 2026-06-16 17:31:52


VIEW MORE
story-1
10 Strangest Audi Designs That Actually Made Production

Slideshow: 10 strangest Audi designs that actually made production

By Joe Kucinski | 2026-06-10 16:32:29


VIEW MORE
story-2
2027 Audi Q7 and SQ7: Audi Upgraded EVERYTHING!

Slideshow: Everything you need to know about the 2027 Audi Q7 and SQ7

By Michael S. Palmer | 2026-06-09 06:02:56


VIEW MORE
story-3
Audi Unveils Absurdly Cool New Supercar: 10 Things You Need to Know!

Slideshow: Limited to just 499 units, the 987-horsepower halo car signals a new chapter for Audi performance.

By Verdad Gallardo | 2026-06-04 17:37:15


VIEW MORE
story-4
The Highs & Lows of Every Audi C-Class Generation

Slideshow: The highs and lows of every Audi C-Class generation.

By Joe Kucinski | 2026-05-27 16:05:50


VIEW MORE
story-5
Top 10 Most Expensive Audis Ever Sold on Bring-A-Trailer

People were more than happy to shell out big bucks for these cars.

By Brett Foote | 2026-05-27 15:32:23


VIEW MORE
story-6
10 Audi Features & Options We Miss the Most!

Slideshow: 10 Audi features and options we miss the most.

By Joe Kucinski | 2026-05-12 19:33:47


VIEW MORE
story-7
Audi Recreates Crazy-Looking Speed Record Breaker From 1935

Slideshow: Audi has recreated one of the wildest machines of the pre-war speed-record era, reviving a streamlined V16 racer that originally exceeded 200 mph in 1935.

By Verdad Gallardo | 2026-05-11 09:49:34


VIEW MORE
story-8
Coachbuilder Recreates the 1995 Audi TTS Concept

Slideshow: A Dutch coachbuilder has reimagined the original Audi TT by finishing what the 1995 concept only hinted at.

By Verdad Gallardo | 2026-05-05 15:17:58


VIEW MORE
story-9
Every Audi V10 Car Ranked!

Slideshow: Ranking every Audi V10 road car

By Joe Kucinski | 2026-04-29 16:11:56


VIEW MORE