Won't stay running
Thread Starter
AudiWorld Newcomer
Joined: May 2016
Posts: 1
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Won't stay running
My friend has a TT 1.8 t will crank gets get to rail starts then dies he had a vacuum hose that was sliced under where the rail is I connected it back still nothing I'm getting code po171 the fuel pumps seem fine I got spark haven't pulled the plugs I don't know what else to do please help any ideas
AudiWorld Super User
Joined: Jan 2006
Posts: 6,310
Likes: 123
From: Las Vegas, Nevada USA
Here we go.
Standard Audi troubleshooting techniques apply. Also standard automotive troubleshooting techniques as well.
1. Perform a proper diagnostic scan. Not with an OBD II tool, but with either the "million dollar" dealer tool or using the VCDS diagnostic interface from Ross-Tech and their software.
2. Read the information from the scan, comprehend it and utilize the guided fault-finding information in the proper Service Manual for the vehicle. Also, search the forum(s) for information from others who have experienced the identical fault/problem. NOTE: "won't stay running" is too general.
3. Also, check this out, while written for another Audi model, most of it applies to your vehicle and can help with troubleshooting. https://www.audiworld.com/forums/a8-...-read-2877219/
4. Watch this video. Most of it applies here :https://www.youtube.com/watch?v=gx4EfoLzu_
Standard Audi troubleshooting techniques apply. Also standard automotive troubleshooting techniques as well.
1. Perform a proper diagnostic scan. Not with an OBD II tool, but with either the "million dollar" dealer tool or using the VCDS diagnostic interface from Ross-Tech and their software.
2. Read the information from the scan, comprehend it and utilize the guided fault-finding information in the proper Service Manual for the vehicle. Also, search the forum(s) for information from others who have experienced the identical fault/problem. NOTE: "won't stay running" is too general.
3. Also, check this out, while written for another Audi model, most of it applies to your vehicle and can help with troubleshooting. https://www.audiworld.com/forums/a8-...-read-2877219/
4. Watch this video. Most of it applies here :https://www.youtube.com/watch?v=gx4EfoLzu_
Last edited by Mister Bally; May 28, 2016 at 11:00 AM.
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