Go Back  AudiWorld Forums > Technical Discussion > Engines > 4.2 V8 Discussion
Reload this Page >

2007 Q7 4.2 L engine problems..Help!! please.

2007 Q7 4.2 L engine problems..Help!! please.

Old 05-24-2016, 06:07 AM
AudiWorld Newcomer
Thread Starter
Join Date: Sep 2014
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default 2007 Q7 4.2 L engine problems..Help!! please.

I started having problems with my 2007 Q7 4.2 L late last year, when I floored the pedal and nothing, only high RPM reading but no monster acceleration like I was used to. The check engine light is turned on. When running in the city at normal speeds, all seems normal and the car runs fine. It is only when you force it at high speed or when going uphill that it stalls and you get no acceleration.

So far I have done the following and I still have the same issue at high RPM:

- Changed all spark plugs
- Changed all ignition coils
- Changed all O2 sensors
- Changed the 2 high pressure fuel pumps with sensors
- Checked for vacuum leaks and nothing appears

I am still getting the following error codes:

- PO304, cylinder 4 misfire
- PO302, cylinder 2 misfire
- PO303, cylinder 3 misfire

Can anyone please give me any clues on what to try next?? My bigger problem is that I am at a town in Bolivia South America, with no Audi support whatsoever, so I have to rely on parts brought from the US.

Thank you very much!!!
Eduardo Valdivia is offline  
Old 12-28-2018, 01:29 PM
AudiWorld Newcomer
Join Date: May 2018
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Default Hi I have the same problem

Hi I have similar issues, in 4.2 FSI all road.
Are you fix yourself the car?
regards Peter
Peter1802 is offline  
Related Topics
Thread Starter
Last Post
A6 / S6 (C6 Platform) Discussion
03-01-2019 10:00 AM
Q7 Discussion
07-14-2018 06:31 PM
Zak Bentoura
A4 (B7 Platform) Discussion
06-21-2017 08:18 PM
Mid Atlantic Discussion
08-24-2005 08:02 AM
A6 / S6 (C5 Platform) Discussion
08-24-2005 06:30 AM

Thread Tools
Search this Thread
Quick Reply: 2007 Q7 4.2 L engine problems..Help!! please.

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: