B6 Models Please discuss all 2002 - 2005 B6 A4 topics here...

Ethanol Fuel by Mistake

Thread Tools
 
Search this Thread
 
Old Jul 17, 2009 | 03:08 PM
  #1  
BOILER 909's Avatar
Thread Starter
|
Junior Member
Joined: Jul 2009
Posts: 1
Default Ethanol Fuel by Mistake

All,

By a mistake, bless her heart, my 2004 A4 was filled with e85 fuel....EPC light and Engine check light have come on, and I hear its is stalling out.

Any advice?
 
Old Jul 17, 2009 | 04:26 PM
  #2  
shane.trammell's Avatar
2nd Gear
Joined: Mar 2007
Posts: 1,181
From: Richardson, TX
Default

biggest problem will be damage to plastic parts in the fuel system. just get it out of there asap
 
Old Jul 17, 2009 | 06:54 PM
  #3  
auditech79's Avatar
Site Moderator
Joined: Feb 2007
Posts: 9,004
From: Nor Cal
Default

Take it to the dealer or a shop that has a gas caddy, they can stick a tube down the fuel filler neck and suck most of it out. Just bring a couple cans of gasoline with you so you won't be stranded. The ethanol shouldn't hurt any factory componets like the tank or lines, but i wouldn't recommend driving on it as it could damage the motor.
 
Old Jul 17, 2009 | 08:03 PM
  #4  
Midniteoyl's Avatar
4th Gear
Joined: Mar 2009
Posts: 3,042
From: Indiana
Default

Agreed... the fuel system itself is Ethanol compatible. But, how did it happen? The nozzles are suppose to be a different size..?
 
Old Jul 23, 2009 | 12:03 PM
  #5  
Mike-2ptzero's Avatar
4th Gear
Joined: Apr 2008
Posts: 3,274
From: Phoenix, Arizona area
Default

The nozzle shouldn't be a different size for the E85 since there are plenty of cars that run on both the E85 and standard unleaded fuel. I also know plenty of peope running E85 in their cars that were built for unleaded.


The car is stalling because the engine will need 30% more fuel when running E85 since ethanol is a low energy fuel, this means the car is basically starving for fuel at this time, running lean and the ecu cant add enough fuel which is why the ecu is throwing a CEL. Best to just get the fuel out of the tank which you can actually do on your own by pulling the feed line off the tank cover cap that is behind the rear seat in the trunk or by putting a special line on the schrader valve on the fuel rail, then just jump power over to the fuel pump fuse.
 
Old Jul 23, 2009 | 03:15 PM
  #6  
kchao2000's Avatar
1st Gear
Joined: Nov 2004
Posts: 461
From: Hillsborough, NJ
Default

What's E85? Are you talking about pure ethanol fuel? I haven't see any around my area (NY, NJ, CT tri-state). Most gas stations here sell gas contain 10% ethanol only.
 
Old Jul 23, 2009 | 06:38 PM
  #7  
Mike-2ptzero's Avatar
4th Gear
Joined: Apr 2008
Posts: 3,274
From: Phoenix, Arizona area
Default

Originally Posted by kchao2000
What's E85? Are you talking about pure ethanol fuel? I haven't see any around my area (NY, NJ, CT tri-state). Most gas stations here sell gas contain 10% ethanol only.
E85 is 85% Ethanol.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Mac_17
Audi TT
8
Jun 13, 2023 09:21 PM
etf42
Computer & Fuel Systems
2
Nov 9, 2008 10:00 PM
matoida6twin
Audi A6
7
Feb 16, 2008 12:40 PM
Rodm21
Audi A4
4
Jan 28, 2006 10:46 AM




All times are GMT -4. The time now is 05:16 AM.