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Audi A6 hard starts...
 
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Audi A6 hard starts/ long crank warm starts

  

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Hey Scotty, I have a 14' Audi A6 3.0 with 90k on it it has a intermediate, warm start problem after driving for a while then letting it sit for about 45min. Sometimes its a long crank and no start,(no codes) you have to try several times before it starts and then theres no problem. Took to 2 shops they cant find any codes. They said good fuel/engine pressure at startup. Any suggestions?

-Jay

 


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Posted by: @veejay

Took to 2 shops they cant find any codes

Codes are just the beginning of the diagnostic process. Did they bother to analyze live data? (If, for example, you had a fuel injector issue that should show up in the fuel trims.)


@chucktobias yes they ran the live data at startup, when the car had the long crank and found the high pressure fuel pumps and engine pressure was normal.. after the car cools it starts with no issue


That wasn't mentioned, we need to know all troubleshooting that has already been done. Pressures as reported in live data are sometimes not accurate since sensors can go bad. The problem sounds like fuel delivery (too much or too little) but could be spark. When it doesn't start you might try spraying a little starting fluid into the intake to see if the engine fires up.


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