Page 2 of 2 FirstFirst 12
Results 11 to 19 of 19

Thread: No speed increase at full throtle

  1. 27th September 2014, 08:59 AM #11
    EvilGTV
    EvilGTV is offline Fossicker
    Join Date
    May 2013
    Location
    Melbourne
    Posts
    57
    Total Downloaded
    0
    Td5 autos do tend to hit a bit of a wall at 80 km/h in standard trim, but if yours has gotten worse than usual, my first guess would be to unplug the MAF and see what happens.

    Also, if yours is an EU3 motor, and has a few Kms on it, the cat may be blocked up - if that's the case, removal will greatly improve pulling power over 80km/h, as well as speed up turbo response.

    Boost leaks or collapsed turbo hoses is another possibility, probably less likely from your description. Oil in the injector loom/at ecu also a possibility...

    Finding someone nearby with a Nanocom could be helpful, may give you some information to go straight to the fault...
    Reply With Quote Reply With Quote
  2. 27th September 2014, 09:09 AM #12
    Slunnie's Avatar
    Slunnie
    Slunnie is offline Swaggie Gold Subscriber
    Join Date
    Jan 1970
    Location
    Central West NSW
    Posts
    14,136
    Total Downloaded
    99.87 MB
    Is the torque converter locking up?

    They seem to get a second wind once the TC locks up, which happens at 80km/h. If they don't its all hard work until it does. If the ATF level is low you will lose the TC lock up.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~
    Reply With Quote Reply With Quote
  3. 28th September 2014, 04:56 PM #13
    yogi_dog's Avatar
    yogi_dog
    yogi_dog is offline Fossicker Subscriber
    Join Date
    Nov 2011
    Location
    Dubbo nsw
    Posts
    52
    Total Downloaded
    0
    Try cleaning or replacing the MAF sensor. Same thing use to happen to me. I just had auto recon and ECU upgrade and they replaced the MAF. Told mechanic about problem and said it more likely to be the MAF then auto.
    Reply With Quote Reply With Quote
  4. 29th September 2014, 10:16 AM #14
    turps's Avatar
    turps
    turps is offline Master
    Join Date
    Feb 2011
    Location
    Bendigo
    Posts
    295
    Total Downloaded
    0
    Mine has had a boost limiting issue. which seems to limit boost to 5.8psi. Once car is turned off and turned on again it returns to normal.
    It has appeared to have fixed itself though. I have cleaned the MAF to fix another issue. Not sure if that was part of my problem.
    Reply With Quote Reply With Quote
  5. 1st October 2014, 04:25 PM #15
    wardy1's Avatar
    wardy1
    wardy1 is offline ChatterBox Supporter
    Join Date
    Jan 1970
    Location
    Ringwood, Vic
    Posts
    2,127
    Total Downloaded
    0
    Had EXACTLY this problem almost 2 years ago. Replaced the MAF and the problem was gone.
    D4 SDV6, a blank canvas
    Reply With Quote Reply With Quote
  6. 1st October 2014, 04:50 PM #16
    Tombie Guest
    MAF, APT or sticking waste gate can all produce over lost readings resulting in power cut
    Reply With Quote Reply With Quote
  7. 7th October 2014, 11:43 PM #17
    Billt
    Billt is offline Fossicker
    Join Date
    Sep 2014
    Location
    Tweed heads
    Posts
    12
    Total Downloaded
    0
    Mine does something similar. It can pause at 80 ish at 3000rm all go and no acceleration, no lock up. suddenly decides to lock up then takes off with no shortage of go. So I need to check the MAF and auto levels. anything else?
    Reply With Quote Reply With Quote
  8. 8th October 2014, 10:56 AM #18
    yogi_dog's Avatar
    yogi_dog
    yogi_dog is offline Fossicker Subscriber
    Join Date
    Nov 2011
    Location
    Dubbo nsw
    Posts
    52
    Total Downloaded
    0
    I just had Ecu remapped and new MAF and it drives beautifully now but I also had the auto recon and TC upgraded. It has completely changed the performance. Doesn't rev over 3000 and power straight away when hit the pedal. This is the very very expensive fix. As listed in this thread start with MAF and waste gate thingy first
    Reply With Quote Reply With Quote
  9. 5th June 2018, 12:21 PM #19
    childo Guest
    Hi all, first time on the forum!

    Hi DiscoLuke, I just wanted to ask if you ever found the cause of the problem you described. It appears quite a few of the experts on the forum were pointing to the MAF sensor as a good starting point.

    I have exactly the same issue you describe with my 2004 TD5 auto. Unfortunately I don't have access to Nanocom at this point.

    So I'll run through some of the checks on this post, but was interested to see if you solved the issue.

    Childo
    Reply With Quote Reply With Quote
Page 2 of 2 FirstFirst 12
« Fuel Door Latch | Valeo key fob »

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!