Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

CEL I can't reference codes anywhere!

SprintStar
 Share

Recommended Posts

SprintStar Member

SprintStar

Posted
Posted

Hi All,

I got 2 codes : P48BD & P48BB. I erased them via Durametric tool and they came back again today. They say "System at Idle Bank 2" & "System at Idle Bank 1" respectively.

Anyone any ideas? It doesn't make sense to me as it doesn't say rich, lean or efficiency levels.

Anyway, what the typical fuel economy you guys are getting?

Thanks!

Sprint.

Link to comment
Share on other sites
SprintStar Member

SprintStar

Posted
  • Author
Posted

Exact model and year of your car please?

Hi Loren!

Sorry, my bad. It's a '05 Cayenne 3.2 V6.

I notice on startup from cold, the engine vibrates a bit and missfires? But evens out when the rpms drop to a steady idle after about 30 seconds. If it helps any.

Sprint.

Link to comment
Share on other sites
PTEC Member

PTEC

Posted
Posted

Those aren't actual codes. Something got screwed up when you read the codes out. You might want to try another code reader. The System at Idle Bank 2" & "System at Idle Bank 1" is legit though. I would say you have some kind of air leak that is screwing up your fuel adaptions but without seeing the fuel trim its just a guess.

Link to comment
Share on other sites
SprintStar Member

SprintStar

Posted
  • Author
Posted

Those aren't actual codes. Something got screwed up when you read the codes out. You might want to try another code reader. The System at Idle Bank 2" & "System at Idle Bank 1" is legit though. I would say you have some kind of air leak that is screwing up your fuel adaptions but without seeing the fuel trim its just a guess.

What does" System at Idle Bank 1" mean? That the problem is happening at bank 1?

Ok, I get the codes read from a PIWIS and get the fuel trim read too. What's a typical acceptable value for fuel trim?

Thanks!

Sprint.

Link to comment
Share on other sites
PTEC Member

PTEC

Posted
Posted

If I am inferring correctly from the jumbled text the durametric pulled, "System at Idle Bank 2" & "System at Idle Bank 1" is referring to the system that adjusts your air fuel mixture based off the readings from your oxygen sensors. If you have a problem that requires the system to adjust more than normal, you'll get a fault similar to what you have. I'm guessing the real faults you have are P2188 and P2190. Like I said though, just a guses.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.