Results 1 to 6 of 6

Thread: DIscovery 4 2.7L - PO23D Error - sensor A correlation reading

  1. 29th October 2023, 10:05 AM #1
    LiamO's Avatar
    LiamO
    LiamO is offline Fossicker Supporter
    Join Date
    Sep 2012
    Location
    Maroubra, NSW
    Posts
    66
    Total Downloaded
    0

    DIscovery 4 2.7L - PO23D Error - sensor A correlation reading

    Team,
    I’m getting a Restricted Performance error on my Discovery 2011 D4 2.7L and a P023D – Manifold absolutes pressure -turbocharger sensor A correlation reading.

    I’ve replaced the Air intake sensor and cleaned the MAF sensor. All went well for a while, but the error comes back intermittently.

    The Air Duct also has a crack where it connects to the air filter box, although it’s not cracked right through the duck and that area is wet. Could this be the issue even though it not cracked right though the duct? All other part of the engine is dry.

    Thanks for the assistance in advance 😊
    Attached Images Attached Images
    Reply With Quote Reply With Quote
  2. 29th October 2023, 10:24 AM #2
    DiscoJeffster
    DiscoJeffster is offline TopicToaster Subscriber
    Join Date
    Mar 2016
    Location
    Perth
    Posts
    4,335
    Total Downloaded
    0
    This error relates to the pressure side of the equation, not the intake.

    I’d suggest you have a leak in an intercooler pipe on a 2.7L engine
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)
    Reply With Quote Reply With Quote
  3. 29th October 2023, 02:25 PM #3
    LiamO's Avatar
    LiamO
    LiamO is offline Fossicker Supporter
    Join Date
    Sep 2012
    Location
    Maroubra, NSW
    Posts
    66
    Total Downloaded
    0
    Thanks YarnMaster

    I'll take the easy option and change the larger Intercooler pipe first - fingers crossed.
    Reply With Quote Reply With Quote
  4. 29th October 2023, 06:38 PM #4
    scarry's Avatar
    scarry
    scarry is offline Swaggie
    Join Date
    Apr 2008
    Location
    Brisbane,some of the time.
    Posts
    13,886
    Total Downloaded
    0
    Also look over the intercooler for signs of oil.
    That is a sure thing it is leaking.
    A loose hose does the same.
    Reply With Quote Reply With Quote
  5. 4th November 2023, 03:53 PM #5
    LiamO's Avatar
    LiamO
    LiamO is offline Fossicker Supporter
    Join Date
    Sep 2012
    Location
    Maroubra, NSW
    Posts
    66
    Total Downloaded
    0

    Thumbs up

    I replaced the Intercooler hose this morning - no more error and no more black smoke!

    Thank you all
    Reply With Quote Reply With Quote
  6. 4th November 2023, 04:19 PM #6
    DiscoJeffster
    DiscoJeffster is offline TopicToaster Subscriber
    Join Date
    Mar 2016
    Location
    Perth
    Posts
    4,335
    Total Downloaded
    0
    Quote Originally Posted by LiamO View Post
    I replaced the Intercooler hose this morning - no more error and no more black smoke!

    Thank you all
    I win! Good work.
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)
    Reply With Quote Reply With Quote
« D3 Transfer Case Service | Oil leak »

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!