High Altitude Lag - AudiForums.com


Central MT, WY, CO, ND, SD, NE, KS

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 09-07-2016, 11:17 PM
1st Gear
Thread Starter
 
Join Date: Sep 2016
Posts: 2
Default High Altitude Lag

Hello Audi Enthusiasts,
I'm new to Denver, CO and from Alabama, where I bought my '02 a4 avant quattro (automatic trans). Shortly after moving here, my fiancÚ and I noticed our vehicle did not accelerate off the line like it used to; or like almost any car should. Although I understand that fuel injected engines should make certain adjustments after changes in altitude, I'm still suspicious that the altitude and thinner air have something to do with this lag.
When starting off the line, we don't reach 3500 rpm until about a second and a half. Of course the turbo kicks in after about 2 seconds and the engine runs like the badass that it is. The engine does not rev or anything, the entire machine just moves slower than it should it seems.
Does anyone have any insight into changing altitudes and this engine?
Thanks!
Reply With Quote
  #2  
Old 09-14-2016, 08:31 AM
4th Gear
 
Join Date: May 2004
Location: Northern NJ USA
Posts: 4,054
Default

Around 15% of the air is missing. The MAF and O2 sensors should tell the fuel injectors to use less fuel. You'll have less power.
Reply With Quote
  #3  
Old 11-05-2016, 11:42 AM
1st Gear
Thread Starter
 
Join Date: Sep 2016
Posts: 2
Default

Thanks Crazyhawk! So does anyone know of a chip or adjustment that can help this or just a non-fixable "problem"?
Again, thanks for the info.
Reply With Quote
  #4  
Old 11-10-2016, 09:06 AM
4th Gear
 
Join Date: May 2004
Location: Northern NJ USA
Posts: 4,054
Default

Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
best chip for high altitude Mysterio22 Audi A6 1 11-24-2011 07:20 PM
For Sale: MTM high altitude 91 octane ECU GetAud!here S Car Model Line 2 07-31-2009 05:23 PM
throttle lag..?? (not turbo lag) dha514 B5 Models 5 04-21-2008 03:15 AM
S4 performance at higher Altitude SuperFreq S Car Model Line 3 07-11-2005 03:46 AM
t High Altitude Performance Chip andrew7173 Audi A4 13 02-10-2005 05:50 PM


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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 08:32 PM.