Notices
997 Forum 2005-2012
Sponsored by:
Sponsored by:

Help interpreting 997.2 codes

Thread Tools
 
Search this Thread
 
Old Jan 6, 2025 | 05:55 PM
  #1  
Targanonymous's Avatar
Targanonymous
Thread Starter
Rennlist Member
 
Joined: Aug 2021
Posts: 169
Likes: 144
Default Help interpreting 997.2 codes

I have some recent active codes on my PDK 2010 997.2 c2s that seem to indicate coil/plug on cylinder 5 but some other problems as well:

P2314
P0355
P0305
U0418 - PDK
U0401 - PDK
5400 - PSM
C152 - POSIP

While driving the dashboard flashed "visit workshop" warnings and white transmission emergency run warnings. The engine also has an obvious misfire.

Should I chalk this all up to needing to replace coils/plugs (last done 28,000 miles / 3.5 years ago) or could it be something else? The battery is also 3.5 years old, but I have noted that recently the engine cranks longer.

Thanks in advance

Reply
Old Jan 7, 2025 | 11:34 AM
  #2  
Petza914's Avatar
Petza914
RL Community Team
Rennlist Member
15 Year Member
 
Joined: Oct 2007
Posts: 28,550
Likes: 8,355
From: Clemson, SC
Default

I would do coils and plugs first. A misfire can result in a PDK transmission error for some reason from what I've seen, even though I don't understand why. I'd first address the misfire then see where you are.
Reply
Old Jan 7, 2025 | 12:27 PM
  #3  
964hans's Avatar
964hans
Racer
5 Year Member
 
Joined: Feb 2018
Posts: 270
Likes: 111
From: Boekelo, The Netherlands
Default

Originally Posted by Petza914
I would do coils and plugs first. A misfire can result in a PDK transmission error for some reason from what I've seen, even though I don't understand why. I'd first address the misfire then see where you are.
Yes that is the best approach!

I had more or less the same error codes and changed all plugs and coils. Problem solved!!

A coil pack can produce an internal spark and so producing an Electro Magnetic field. Probably the PDK control unit is susceptible for EM fields. (EMC)

New coils



regards Hans
Reply
Old Jan 17, 2025 | 10:36 PM
  #4  
Targanonymous's Avatar
Targanonymous
Thread Starter
Rennlist Member
 
Joined: Aug 2021
Posts: 169
Likes: 144
Default

Thanks for the feedback. To close this out for posterity, I had the coils and plugs changed (~$1200) at an independent in the Chicago suburbs and seemed to fix all the issues. Everything runs great now and no codes.

Thanks again-
Reply




All times are GMT -3. The time now is 05:38 AM.

story-0
Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture

Slideshow: Porsche has created a Japan-only 911 GT3 Artisan Edition that blends track-ready hardware with design cues inspired by traditional Japanese craftsmanship.

By Verdad Gallardo | 2026-04-28 19:37:40


VIEW MORE
story-1
Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look

Slideshow: Porsche's latest electric Cayenne Coupe blends dramatic styling with supercar acceleration, turning the brand's midsize SUV into a 1,139-horsepower flagship.

By Verdad Gallardo | 2026-04-27 19:39:30


VIEW MORE
story-2
10 Porsche Colors That Have More Personality Than Most People

Slideshow: Porsche's wildest paint colors aren't just shades-they're full-blown personalities on four wheels.

By Verdad Gallardo | 2026-04-27 19:38:13


VIEW MORE
story-3
Guntherwerks' Final Speedster Creation Is the Ultimate Porsche Restomod

Slideshow: The last of the Speedsters doesn't just close a chapter, it makes quite the bold, air-cooled statement.

By Verdad Gallardo | 2026-04-22 17:55:04


VIEW MORE
story-4
10 Reasons I Hate Going to the Porsche Dealership (& the 1 Reason I Stay)

Slideshow: Going to a Porsche dealership may not be the dream experience you expect it to be and these are the reasons why.

By Joe Kucinski | 2026-04-21 13:54:19


VIEW MORE
story-5
Porsche Shakes Up The Nürburgring Lap Record Table Once Again

Slideshow: Porsche just proved-again-that precision engineering can outrun brute force at the Nürburgring.

By Verdad Gallardo | 2026-04-18 20:27:02


VIEW MORE
story-6
6 Ways the Porsche 911 GT3 S/C Redefines Performance

Slideshow: Six reasons why you will love the Porsche 911 GT3 S/C and 1 reason you will hate it.

By Joe Kucinski | 2026-04-14 10:21:39


VIEW MORE
story-7
10 Wildest Homologation Specials Porsche Ever Sold

Slideshow: Some of the most desirable Porsche models are those that were sold to the public solely for homologation purposes.

By Verdad Gallardo | 2026-04-08 09:54:26


VIEW MORE
story-8
Super Rare RUF BTR III Comes Out of Hibernation, Looking For a New Home

Slideshow: The lone BTR III-spec Targa features rare RUF engineering with a 430-hp turbo flat-six and fewer than 30 miles since its rebuild.

By Verdad Gallardo | 2026-04-06 20:03:25


VIEW MORE
story-9
10 Porsche Opinions That Can Start a Fight

Slideshow: If you want to start a debate with a Porsche friend, these 10 opinions are a great way to get started.

By Joe Kucinski | 2026-04-02 16:53:02


VIEW MORE