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Car shuts off every 10 min or so.

Tiny
BRIANRCARD
  • MEMBER
  • 2002 AUDI A6
  • 145,000 MILES
I purchased a 2002 a6 quattro with 140000 miles. It ran great for the first two months. One day I went to start it and it just wouldnt even tho it was getting spark and fuel. I waited twentry minutes and it started right up. This happened once or twice a week for two months. Recently it has progressed and only runs for ten minutes before shutting off even while driving. I replaced the fuel pump and filter and the problem persists. The check engine light was on due to a catalytic conv issue but no other warnings pop up. I have no idea where to look next. I was told its my security system cause my key fob doesnt work, or my intake is leaking. I am an idiot with cars n have no idea, please assist.
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Wednesday, July 31st, 2013 AT 5:36 PM

3 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Did you check with a scan tool to confirm that the MIL is for the catalytic converter?

Getting sparks and fuel still requires the fuel injectors to pulse. Try some starting fluid to test if engine starts, at least briefly.
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Wednesday, July 31st, 2013 AT 6:24 PM
Tiny
BRIANRCARD
  • MEMBER
  • 2 POSTS
Yes I did prior to purchase. It was the only thing that came up. Like bank 1 sensor too or something. It very well might be the injectors.I loaned my car to a friend and got it back comp. Empty with zero miles showing so I know he drove it with very little gas. If it is the injectors whats my move. How do I fix it.
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Wednesday, July 31st, 2013 AT 6:30 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
You need to test if it they are pulsing.

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Go to above link for more information.
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Wednesday, July 31st, 2013 AT 6:34 PM

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