After replacing sensor pigtails on the cam sensor and high-pressure fuel rail sensor, all of the sensors are coding?

2008 AUDI A4
212,000 MILES • 2.0L • 4 CYL • 4WD • AUTOMATIC
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JAZZY JEFF
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  • 2 POSTS
Replaced pigtails on the cam sensor and high-pressure fuel rail sensor and now all the sensors are coding. Did I cross a wire by accident?
Aug 17, 2022 at 1:22 AM
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BORIS K
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  • 836 POSTS
Hello,

Both of these sensors share a 5V supply and ground.
It is important to get the pin location correct.
Please see image below regarding the wiring colors and pins

Hope this helps.

Cheers, Boris
Aug 17, 2022 at 3:32 AM
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JAZZY JEFF
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Replaced wiring to diagram specs and erased codes and still codes keep coming back.
P3193, p0343, p0113, p0118, p2539, p0180, p1098.
Did some reading and saw a few other stories like mine but no solutions.
Before this had a code 2177 lean code.
Thinking fuel injector wiring harness might have a short, don't know what to do. Need help please.
Aug 19, 2022 at 12:29 PM
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BORIS K
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  • 836 POSTS
Hello,

Which diagnostic tool are you using?
I would suggest using Ross-Tech VCDS,
https://www.ross-tech.com/vag-com/

Regarding your initial code, P2177.
This code can have various causes, low fuel pressure, blocked injectors, intake air leak, faulty crank case ventilation system.
http://wiki.ross-tech.com/wiki/index.php/18609/P2177/008567
A good video:
https://youtu.be/bA73ZWmw4k0

I believe P3193 and P1098 are related.
http://wiki.ross-tech.com/wiki/index.php/19649/P3193/012691#Possible_Causes
http://wiki.ross-tech.com/wiki/index.php/17506/P1098/004248

I think you will need to carry out the basic setting procedure first.
http://wiki.ross-tech.com/wiki/index.php/2.0l_TFSI_(AXX/BGB/BPJ/BPY/BWA)#Intake_Manifold_Runner

P0343.
http://wiki.ross-tech.com/wiki/index.php/16727/P0343/000835

P0113.
http://wiki.ross-tech.com/wiki/index.php/16497/P0113/000275

P0118.
http://wiki.ross-tech.com/wiki/index.php/16502/P0118/000280

P0180.
http://wiki.ross-tech.com/wiki/index.php/16564/P0180

There is a wealth of information on the Ross-Tech wiki site.

Hope this helps.

Cheers, Boris
Aug 22, 2022 at 7:53 AM