Go Back  AudiForums.com > Audi Models > Audi A6
OBDII Issues after ECU upgrade?? >

OBDII Issues after ECU upgrade??

Audi A6 The mid-sized Audi A6 model offers more room to the driver and passengers over the A4 line.

OBDII Issues after ECU upgrade??

  #1  
Old 02-10-2013, 11:30 AM
1st Gear
Thread Starter
Join Date: Oct 2007
Posts: 143
Default OBDII Issues after ECU upgrade??

Hey Guys,

I was wondering if ECU upgrades can affect the OBD on our cars. I did a unitronic 91+ stage 1 upgrade about a year ago but never really did any other diagnostics on my car since. Recently; I tried a regular crafstman OBDII scanner on my car, as well as using my mechanics snap-on / wireless OBDII scanner, and neither one could establish communication. There was always some error code.

Has anyone had issues like this? I don't know if it's something else but the ecu upgrade is the only thing i could think of that may have caused the issue. I want to try other alternatives before i take it to the dealer for a $125 diagnostic. Who know if the VAG-COM itself will actually work as opposed to the other methods. I also experienced the TCM getting wet (which is why i need to check the codes - cause i think my car is in limp mode) but I don't think communication with the main computer would have anything to do with the TCM right?

Any help would be appreciated.

2000 A6 4.2L
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
grambo73
Audi Q5
3
08-23-2012 01:18 AM
wroark
Electronics
0
12-07-2011 09:13 AM
rruffoa4
B6 Models
0
11-06-2011 02:07 AM
Bklynrx7
Audi A6
2
09-23-2010 11:19 AM
ky1699
Audi A4
2
10-06-2006 06:27 AM


Thread Tools
Search this Thread
Quick Reply: OBDII Issues after ECU upgrade??


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.