Audi A6 c6 dies while driving

Hello,
i have an Audi A6 2006 3.2 I bought it 10 months ago.
2 days after the car start shutting off while stopping on lights or on parking and sometimes even whine moving.
but the car had a very hard time to start also and was getting worst.

No engine codes.
Anyway make long story short we start changing things
1) fuel pump
2) high pressure fuel pump
3) fuel tank (the tank was all sucked in)
4) fuel pressure sensor
5) fuel injectors
​​​​​6) ignition coils and harness
7) sparkplugs
8) valve cover gaskets (was leaking oil)
9) gas filter

​​​​The 9 first didn’t solve the issue
10

) fuel control module (that **** was the problem)
——————
9 months after I have almost the issue car is shutting off after about 30m of driving then if I try to start the car it does start right away and dies after 2 seconds. I have to leave the car 5 minutes and then start it drives 20-30m and then dies again. I know it’s not the control module because when that went bad the car was not starting at all.

1) Battery is new
2) test alternator good
3) changed purge valve today and empty the gas tank and add fresh gas (I know stupid but I did it)

Seems nothing solves the problem.
Now I have a engine code 4 months bank 2 sensor 1 but the car never die off like that.
Does anyone knows if that sensor will make the car die after 20 minutes of driving. Like I said that code is there 4-5 months never my car shut off or idle rough or any other signs.
I didn’t want to change that also because is around $300.

I don’t know what else to changed to that freaking car, like I said no engine code and all the tests like fuel pressure and etc test totally fine.

Any ideas will much appreciated. Thank you

I heard of this issue a lot with the B8 S5 which is very similar to our car. Their issue was the fuel pump relay getting stuck and shutting the fuel off.

— check all relays under the ECU cover in the engine bay area. To remove the box completely is a large amount of work. I heard one guy on here had success with just unscrewing the covering and holding it up with a screwdriver while he reached in and replaced one relay at a time.
— All of your values look fine. LT is a little lean, possibly due to the car trying to request more fuel right before it dies??
— The relay is in position 2 «Middle»

— also try running it with the MAF unplugged, there could possibly be an issue there, and this check is the best kind, free

Hello,
i have an Audi A6 2006 3.2 I bought it 10 months ago.
2 days after the car start shutting off while stopping on lights or on parking and sometimes even whine moving.
but the car had a very hard time to start also and was getting worst.

No engine codes.
Anyway make long story short we start changing things
1) fuel pump
2) high pressure fuel pump
3) fuel tank (the tank was all sucked in)
4) fuel pressure sensor
5) fuel injectors
​​​​​6) ignition coils and harness
7) sparkplugs
8) valve cover gaskets (was leaking oil)
9) gas filter

​​​​The 9 first didn’t solve the issue
10

) fuel control module (that **** was the problem)
——————
9 months after I have almost the issue car is shutting off after about 30m of driving then if I try to start the car it does start right away and dies after 2 seconds. I have to leave the car 5 minutes and then start it drives 20-30m and then dies again. I know it’s not the control module because when that went bad the car was not starting at all.

1) Battery is new
2) test alternator good
3) changed purge valve today and empty the gas tank and add fresh gas (I know stupid but I did it)

Seems nothing solves the problem.
Now I have a engine code 4 months bank 2 sensor 1 but the car never die off like that.
Does anyone knows if that sensor will make the car die after 20 minutes of driving. Like I said that code is there 4-5 months never my car shut off or idle rough or any other signs.
I didn’t want to change that also because is around $300.

I don’t know what else to changed to that freaking car, like I said no engine code and all the tests like fuel pressure and etc test totally fine.

Any ideas will much appreciated. Thank you

please I’ll like to know if and how you eventually solved this problem. I use an A6 2006 model and I’m currently experiencing same issue. I’ve tried three mechanics already to no avail. Changed almost everything on your list and still the problem persists.

Anybody with ideas would be much appreciated. Thank you

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