Go Back  AudiForums.com > Audi Models > S Car Model Line > S5
Audi S5 Wont Start After Fueling >

Audi S5 Wont Start After Fueling

Audi S5 Wont Start After Fueling

  #1  
Old 12-10-2018, 02:40 PM
1st Gear
Thread Starter
Join Date: Dec 2018
Posts: 2
Question Audi S5 Wont Start After Fueling

I bought a 2008 S5 a couple weeks ago, and I've run int o an issue where the car will turn over but wont fire all the way after getting gas. This happens for a couple tries and then fires up fine, and never does it again until I get gas. I replaced the canister purge valve, but that didn't fix the problem. Does anyone know what else could be causing this? The car only has 41,500 miles on it.
 
  #2  
Old 12-17-2018, 03:26 PM
1st Gear
Join Date: Dec 2007
Posts: 5
Default

Colton, check the Purge Vent valve. When these fail they give symptoms as yours. Also known as the N80 valve. I have a 2013 3.0t so I am not sure where (most likely engine bay) yours is located. Google search for a pic, all Audi ones look about the same, then look in your engine bay. Do you have Ross-Tech (Vagcom), it should tell if your N80 is throwing a code. Doesn't always set off the CEL if it is intermittent.
 
  #3  
Old 12-17-2018, 04:41 PM
1st Gear
Thread Starter
Join Date: Dec 2018
Posts: 2
Default

Thatís what I thought it would be too, but I replaced the N80 valve and it didnít fix the problem..
 
  #4  
Old 12-17-2018, 10:01 PM
1st Gear
Join Date: Dec 2007
Posts: 5
Default

Might try a fuel pressure leakdown check. After you shut off the engine see how fast the fuel pressure drops. Should stay pretty high for a few hours.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
cdeflippo
Audi A4
5
07-10-2014 02:14 AM
Billydakid
S Car Model Line
0
10-29-2010 02:40 AM
Alisajp
Audi A6
2
01-29-2010 05:22 PM
brent07
Audi A4
5
01-11-2007 12:33 AM
mig
Audi A6
5
06-22-2006 04:51 PM


Thread Tools
Search this Thread
Quick Reply: Audi S5 Wont Start After Fueling


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.