2007 v8 fsi P2152 fault code - Club Touareg Forums
 
Thread Tools Display Modes
post #1 of 6 Old 04-11-2015 Thread Starter
Junior Member
 
turbophil's Avatar
 
Touareg: 2008 V8
Join Date: Oct 2014
Location: Vancouver
Second Vehicle: is jealous
Posts: 38
Thanks: 0
Thanked 2 Times in 1 Post
2007 v8 fsi P2152 fault code

My V8 T2 just kicked a fault and is running rough, no power. I've searched for any info for the fault code P2152. Anybody seen this before?
I'm going to start checking all the wiring etc. Runs fine until it gets warmed up and then runs rough.
turbophil is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old 04-12-2015
Touareg Mechanic
 
mtnride's Avatar
 
Touareg: 2007 V8
Join Date: Dec 2014
Location: Eden, Utah
Second Vehicle: 2007 V8
Posts: 522
Thanks: 23
Thanked 58 Times in 54 Posts
Don't know if this will help but it was all I could find. P2152 Fuel Injector Group "C" supply voltage circut /open. Check fuel injectors N 30,N 31,N 32,N 33,N 83,N 84,N 85 and N 86. Nice to see someone else out there with a 07 V8 FSI Mtnride
mtnride is offline  
post #3 of 6 Old 04-12-2015 Thread Starter
Junior Member
 
turbophil's Avatar
 
Touareg: 2008 V8
Join Date: Oct 2014
Location: Vancouver
Second Vehicle: is jealous
Posts: 38
Thanks: 0
Thanked 2 Times in 1 Post
Thanks. There is a Group A,B,C,D for the injectors but I can't find what injectors are in which group. But when doing an output check I found that one of the injectors is not operating. I'm going to pull the intake tonight and check the signal to the injectors and figure out what Group is for what injector.
turbophil is offline  
Sponsored Links
Advertisement
 
post #4 of 6 Old 05-06-2015 Thread Starter
Junior Member
 
turbophil's Avatar
 
Touareg: 2008 V8
Join Date: Oct 2014
Location: Vancouver
Second Vehicle: is jealous
Posts: 38
Thanks: 0
Thanked 2 Times in 1 Post
Just a little update in case somebody ever has this same issue since there is 0 info on it.

There is no info on what injectors are in each group (A,B,C,D) We (friend and I) check the diagram and assume that Group A was cylinder 1 and whatever adjoining cylinder was in the diagram. After several checks, the groups follow the ABCD/Cylinder 1234 layout. The remaining cylinders are whatever is matched to the 1,2,3,4 injector.
Example- Group C injectors is Cylinder 3 and 5

In the case for my touareg, I took the intake manifold off and found that cylinder 5 had slightly low resistance @1.8-9ohms compared to the rest that were 2.2 ohms. I doubted this difference could cause the poor running that I had, felt like the truck dropped 2 cylinders. I reassembled it and took it to the dealer thinking it was an ECU issue and its still covered under emissions warranty.

They re-diagnosed it, decided to put in an overlay harness for both 3+5 cylinder and I paid for new injectors just in-case. I still thought it was an ECU issue. It went back together, was road tested and everything is good!
I never thought that the little difference in the injector would cause this much of an issue but it does. It felt (when driving) as though the ecu shut off both cylinders in that group.

Hopefully it doesn't happen again but it was a good learning experience. Several VW and Audi techs I know all had never seen the issue. The tech that repaired mine also said there is no info on the fault and he followed the same path that I had except he doubted the injector where I thought it would be ok.
turbophil is offline  
post #5 of 6 Old 05-07-2015
Touareg Guru
 
noobytoogy's Avatar
 
Touareg: Still looking
Join Date: May 2009
Location: Brexit Central, England
Second Vehicle: is not a VW
Posts: 20,345
Thanks: 0
Thanked 579 Times in 505 Posts
Informative post.
noobytoogy is offline  
post #6 of 6 Old 05-07-2015
Touareg Mechanic
 
mtnride's Avatar
 
Touareg: 2007 V8
Join Date: Dec 2014
Location: Eden, Utah
Second Vehicle: 2007 V8
Posts: 522
Thanks: 23
Thanked 58 Times in 54 Posts
thanks for the update
mtnride is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Club Touareg Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome
 

VW Touareg News Delivered to your Email!

Stay up-to-date with Touareg news in your inbox.

unsusbcribe at anytime with one click

Close [X]