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I have an a6 s-line v8 that is getting a random misfire code…

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Hello,I have an a6 s-line...
Hello,I have an a6 s-line v8 that is getting a random misfire code and cylinder 8 misfire code. So I have changed the plugs as well as the coil packs on the vehicle. Now it starts up and imediately stalls. I did only the 4 plugs on the cylnder 8 side. Still same codes as before
Submitted: 8 months ago.Category: Car
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Answered in 53 minutes by:
12/11/2017
Auto Mechanic: tech0405, Technician replied 8 months ago
tech0405
tech0405, Technician
Category: Car
Satisfied Customers: 11,168
Experience: Certified technican 14 years experience
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Good afternoon can you provide me the trouble codes you are getting??

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Customer reply replied 8 months ago
getting 2 codes. 00768 random Misfire P0300 Upper Limit Reached. And 00776 Cylinder 8 misfire P0308 Upper limit reached
Auto Mechanic: tech0405, Technician replied 8 months ago

Ok so replaced all the coils and a couple spark plugs and now the vehicle will not stay running ?? have you verified all the hoses off the intake care plugged inn??? or if something was left unplugged ?

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Auto Mechanic: tech0405, Technician replied 8 months ago

What year is this vehicle ???

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Customer reply replied 8 months ago
2007
Auto Mechanic: tech0405, Technician replied 8 months ago

Erase the faults and try to turn on the vehicle and se what faults come back ??

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Customer reply replied 8 months ago
Same ones
Auto Mechanic: tech0405, Technician replied 8 months ago

The vehicle should start if you only have 1 cylinder misfire , was it actively misfiring before this happened or just sporadic??

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Customer reply replied 8 months ago
it started to but would start and run rough
Customer reply replied 8 months ago
But the not staying running wasn’t until plugs were done I’ll double check everything tomorrow
Auto Mechanic: tech0405, Technician replied 8 months ago
Please do and let me know the results because it’s not normal to not stay running after the coil and plug replacement
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Customer reply replied 8 months ago
Ok
Auto Mechanic: tech0405, Technician replied 8 months ago
Thanks
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