Results 1 to 9 of 9

Thread: low boost

  1. 18th June 2015, 11:25 PM #1
    gezza
    gezza is offline Fossicker
    Join Date
    Jun 2015
    Location
    waroona wa
    Posts
    43
    Total Downloaded
    0

    low boost

    hi iv got a 04 discovery td5 and iv lost boost im only making 6 pis when I was getting 18 iv changed the wastgate solenoide and it makes no difference but if I bypass it I get 12 psi I have no idear about turbo engines so any help /idears to fix the old girl will be great thanks gezza
    Reply With Quote Reply With Quote
  2. 18th June 2015, 11:39 PM #2
    discorevy
    discorevy is offline ChatterBox Subscriber
    Join Date
    Nov 2014
    Location
    Nirvana near Albany W.A.
    Posts
    2,510
    Total Downloaded
    0
    Is there a loss of power , hissing noise under boost ?
    Reply With Quote Reply With Quote
  3. 18th June 2015, 11:49 PM #3
    gezza
    gezza is offline Fossicker
    Join Date
    Jun 2015
    Location
    waroona wa
    Posts
    43
    Total Downloaded
    0
    Massive loss I cant go past 80ks but if I bypass it it will go all the way to 110+ easy and there is no hissing noise
    Reply With Quote Reply With Quote
  4. 18th June 2015, 11:59 PM #4
    discorevy
    discorevy is offline ChatterBox Subscriber
    Join Date
    Nov 2014
    Location
    Nirvana near Albany W.A.
    Posts
    2,510
    Total Downloaded
    0
    Just to be clear , are you bypassing the waste gate actuator ( near turbo) or the boost controller with the 3 hoses ? .
    You may have a seized wastegate .
    Reply With Quote Reply With Quote
  5. 19th June 2015, 12:21 AM #5
    gezza
    gezza is offline Fossicker
    Join Date
    Jun 2015
    Location
    waroona wa
    Posts
    43
    Total Downloaded
    0
    the boost controller I connected the preasure pipe from the bottom turbo pipe to the wastgate and got 12 psi
    Reply With Quote Reply With Quote
  6. 19th June 2015, 12:27 AM #6
    sierrafery's Avatar
    sierrafery
    sierrafery is offline YarnMaster Silver Subscriber
    Join Date
    Jul 2014
    Location
    west of Transylvania
    Posts
    3,793
    Total Downloaded
    0
    You need to plug in a tester cos it might be a bad MAP/IAT or AAP sensor signal which you can't check other way and the wastegate modulator is managed based on them, untill then see if the MAP/IAT is not full of muck...presumably you'll get a fault code as well unless it's fuel delivery issue...do you still have EGR? ...unplug the MAF and see how it goes and check fuse F2 in engine bay to rule it out
    Discovery Td5 (2000), manual, tuned
    Reply With Quote Reply With Quote
  7. 19th June 2015, 12:33 AM #7
    discorevy
    discorevy is offline ChatterBox Subscriber
    Join Date
    Nov 2014
    Location
    Nirvana near Albany W.A.
    Posts
    2,510
    Total Downloaded
    0
    Try cleaning maf , map sensors , but check your wastegate is not stuck partly open .
    Reply With Quote Reply With Quote
  8. 19th June 2015, 12:49 AM #8
    gezza
    gezza is offline Fossicker
    Join Date
    Jun 2015
    Location
    waroona wa
    Posts
    43
    Total Downloaded
    0
    will do thanks
    Reply With Quote Reply With Quote
  9. 20th June 2015, 08:36 PM #9
    gezza
    gezza is offline Fossicker
    Join Date
    Jun 2015
    Location
    waroona wa
    Posts
    43
    Total Downloaded
    0

    Smile

    ok so I have cleaned every sensor that I could find checked the wastgate that was all good and then found the problem it was a pin hole in my boost gauge pipe,i replasted it and wow my old girl is back
    Reply With Quote Reply With Quote
« Lost all electrical power | Mud terrain options on stock D2 »

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!