AudiForums.com

Go Back   AudiForums.com > Audi Models > Audi A4
Sign in using an external account
Register Forgot Password?
Register Photos FAQ Members Parts Search Today's Posts Mark Forums Read ExperienceGarageUsed CarsVendors TSBs
Search
Welcome to AudiForums.com

Audi A4 The Audi A4 model offers nimble handling and performance that makes it one of the leading cars in its class. Read more about the Audi A4 in the Audi A4 review.

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 10-11-2004, 08:34 PM
1st Gear
 
Join Date: Jun 2004
Location:
Posts: 42
Default VAG-COM ERROR CODES!!

Hooked the car up to the vag today, got three codes.
P1138:?
P1136:?
P0455: (Large) Leakage Evap Emission Control System Leak--I Think that was because my gas cap became faulty and the tank wasn't pressurizing properly, in fact you could here pressure escaping when the car was on if you were standing next to the cap. So I replaced that, could that have been it?
  #2  
Old 10-11-2004, 09:55 PM
6th Gear
 
Join Date: Nov 2003
Location: Columbs, Ohio
Posts: 10,684
Send a message via AIM to Jestnomen Send a message via Yahoo to Jestnomen
Default RE: VAG-COM ERROR CODES!!

P1138 Long Term Fuel Trim Add,Fuel,Bank2 System too Lean
P1136 Long Term Fuel Trim Add,Fuel,Bank1 System too Lean


You are right on the money! Just clear the codes out and see if it comes back. If it does, the first two codes would lead me to suspect a faulty MAF.
__________________

2005 A4 1.8tqm Avant
2004 VW Touareg
2005.5 Audi A4
  #3  
Old 10-12-2004, 01:11 AM
2nd Gear
 
Join Date: May 2004
Location: Indianapolis, IN
Posts: 1,096
Default RE: VAG-COM ERROR CODES!!

Jestnomen, good call, 1136 and 1138 are the two I had when my maf failed.
  #4  
Old 10-12-2004, 06:04 PM
1st Gear
 
Join Date: Jun 2004
Location:
Posts: 42
Default RE: VAG-COM ERROR CODES!!

Well took it to a guy I know at this garage, isn't sure what the emissions problems are, says the MAF is reading out good voltage levels, so I don't know. He did discover on top of this emissions fiasco that my valve cover gaskets are leaking. Is this a big job, or should I just leave it to the pros? This other place is quoting me at like $419 out the door.
.
  #5  
Old 10-12-2004, 06:45 PM
6th Gear
 
Join Date: Nov 2003
Location: Columbs, Ohio
Posts: 10,684
Send a message via AIM to Jestnomen Send a message via Yahoo to Jestnomen
Default RE: VAG-COM ERROR CODES!!

did you take your car to someone who is familiar with Audi's?? That Evap code is almost always caused by not having the cap on tight. you may also have to replace the seal that goes around it too. The MAF problem can be sporatic (mine was). Fine sometimes and crummy other times. Go buy yourself a VAG-Com and clear the codes, and then see if they come back. i think ECS sells a valve cover gasket kit.
__________________

2005 A4 1.8tqm Avant
2004 VW Touareg
2005.5 Audi A4
  #6  
Old 10-12-2004, 10:49 PM
2nd Gear
 
Join Date: May 2004
Location: Indianapolis, IN
Posts: 1,096
Default RE: VAG-COM ERROR CODES!!

CCGIANTS, the valve cover gasket is not that big a deal. I'd say save the 400 bucks and go at it yourself. I did mine this summer. It took about 2 and a half hours, with several interuptions. When you do the valve cover gasket, you'll also want to do the cam timing chain seal. I did a write up on these a while back, I'll try and find it in the archives.
  #7  
Old 10-13-2004, 03:36 AM
1st Gear
 
Join Date: Jun 2004
Location:
Posts: 42
Default RE: VAG-COM ERROR CODES!!

Yeah I just looked it up, that will definetly help. I'm just going to do it myself and save a little cash. Concerning the emissions problem, I'm going to get it smogged tomorrow and see if I can diagnose it that way. I'd go to a dealer, but its about an hour away and got too much stuff going on to be without a car for a day.
  #8  
Old 10-14-2004, 04:57 AM
1st Gear
 
Join Date: Jun 2004
Location:
Posts: 42
Default RE: VAG-COM ERROR CODES!!

Also, the mechanic mentioned the possibility of the O2 sensors or the fuel filter??
  #9  
Old 10-14-2004, 09:28 AM
6th Gear
 
Join Date: Nov 2003
Location: Columbs, Ohio
Posts: 10,684
Send a message via AIM to Jestnomen Send a message via Yahoo to Jestnomen
Default RE: VAG-COM ERROR CODES!!

Usually both O2 sensors don't go bad at the same time. Normally you would either see P1138 or P1136. But it could happen. I would put the fuel filter at the end of the list. But they are reletively cheap to change, so it wouln't hurt.

So are you going to do all the maintenance yourself, or just the gasket?
__________________

2005 A4 1.8tqm Avant
2004 VW Touareg
2005.5 Audi A4
  #10  
Old 10-14-2004, 06:20 PM
1st Gear
 
Join Date: May 2004
Posts: 377
Default RE: VAG-COM ERROR CODES!!

What car is it and year? I have these same codes and it was the hose that connects to the check valve and the other hose is the one that connected to the manifold.
I do have a 2001 A4 1.8TQ AWM.
Old 10-14-2004, 06:20 PM
 
 
 
Reply


Tags
2004, a4, audi, code, codes, emissions, error, fuel, p1138, touareg, trim, vag, vagcom, volkswagen, vw


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Advertising

Featured Sponsors
Vendor Directory
New Sponsors

All times are GMT -4. The time now is 02:32 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO ©2010, Crawlability, Inc.
Internet Brands, Inc.
Emails Backup