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Help with D4D intermittent stutter/ miss

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  • krypto
    started a topic Help with D4D intermittent stutter/ miss

    Help with D4D intermittent stutter/ miss

    Twice in the last two weeks the engine in my D4D has had a couple of stutters / misses as I've driven through a corner after braking. I'm not sure if diesel engines can have a 'miss' but that's what it feels like This does not feel like the 2nd gear hesitation that has been extensively discussed, it feels and sounds more like fuel starvation.

    I had a look at the fuel system to check for water and it was all clear, and the diesel looked fine. What is strange is the air in the secondary filter. It has a bit of air in the top of the clear bowl and if I tip the filter upside down all the diesel drains completely out of the bowl (it's shown in the photos below).

    I've checked for air leaks and can't find any. Also the car starts fine in the morning so it's not loosing pressure. The problem only occurs when slowing and then accelerating out of a corner.

    So any ideas as to the possible cause?

    Pictures of bowl below
    Attached Files

  • Paul200990
    replied
    Matt150, are you able to get any clearer pictures of the update software. Hard to see in the picture.

    thanks heaps

    Leave a comment:


  • krypto
    replied
    Originally posted by Paul200990 View Post
    About Help with D4D intermittent stutter/ miss
    I have a 2011 prado with this hesitation issue,
    i have had it re mapped about a year ago and still she the issue, but unsure if the where about to update the ecu for the upgrade. Not really sure how this works though. And itís around 2000-2400rpm she jumps in and out of hesitations. Would the temp have automatically updated this or is it something that only Toyota can do
    this was fixed with a Toyota ECU update

    Leave a comment:


  • Paul200990
    replied
    About Help with D4D intermittent stutter/ miss
    I have a 2011 prado with this hesitation issue,
    i have had it re mapped about a year ago and still she the issue, but unsure if the where about to update the ecu for the upgrade. Not really sure how this works though. And itís around 2000-2400rpm she jumps in and out of hesitations. Would the temp have automatically updated this or is it something that only Toyota can do

    Leave a comment:


  • barajak
    replied
    Originally posted by tempestv8 View Post
    Any changes to fuel consumption for city driving after trans flash?
    Not that I noticed

    Leave a comment:


  • Riv39
    replied
    Rob, yeah only affects the auto as it makes it hold 4th till approx 60km/hr.

    Leave a comment:


  • rptdprado
    replied
    Originally posted by Riv39 View Post
    Rob, keep an eye on your fuel economy around town...oops just noticed you've got a manual. The economy issue only affects the auto.
    Good point even though its a manual I will keep an eye on it, but in essence so far I can't see any change. Overall I'm glad I've done the upgrade.

    Leave a comment:


  • andoland
    replied
    Originally posted by rptdprado View Post
    Hi Guys,

    I think I have this miss issue at high speeds on slight inclines (slow acceleration) at around 2300-2400 rpm. Its a very quick pause almost enough not to notice but its definitely something along the line of this issue. Mine is a manual, I'd be interested to hear if any manual drivers have had the ECU flash done and any improvements ? Also I assume there is no way to check the current ECU version apart from taking to Toyota ?

    Regards
    Rob
    I have a manual, had this problem and Toyota did the ECU reprogram and it's been fine since.

    Leave a comment:


  • Vk3bq
    replied
    after 6 months on the new firmware, (and 20000km) we haven't had the issue. no more hesitation, etc. economy is the same.

    avoid lane toyota, they are lying asshats

    Leave a comment:


  • Riv39
    replied
    Rob, keep an eye on your fuel economy around town...oops just noticed you've got a manual. The economy issue only affects the auto.
    Last edited by Riv39; 07-05-2014, 12:11 PM.

    Leave a comment:


  • rptdprado
    replied
    Just an FYI I had the update performed last week by a Toyota dealer, even though my car is out of warranty they were really good to pass the cost back onto Toyota Australia, hence free upgrade. I have noticed since the update, the car is much smoother between gear changes and just nicer to drive, I still need to do a longer trip to see if I can replicate the issue (hopefully not) but I'm pretty confident the problem is solved.

    Regards
    Rob

    Leave a comment:


  • krypto
    replied
    Originally posted by Catdog View Post
    G'day

    My 150 just started this stutter. I have owned it for nearly 2 months. The used car warranty just expired on my recent road trip, It has only started playing up todayf. It's just due now for 120k service. I have noticed this stutter when acelerating, mostly at higher speeds. Pretty annoyed.
    The update should just be a part of servicing so no cost.

    Leave a comment:


  • Catdog
    replied
    G'day

    My 150 just started this stutter. I have owned it for nearly 2 months. The used car warranty just expired on my recent road trip, It has only started playing up today. It's just due now for 120k service. I have noticed this stutter when acelerating, mostly at higher speeds. Pretty annoyed.

    Leave a comment:


  • rptdprado
    replied
    Hi Guys,

    I think I have this miss issue at high speeds on slight inclines (slow acceleration) at around 2300-2400 rpm. Its a very quick pause almost enough not to notice but its definitely something along the line of this issue. Mine is a manual, I'd be interested to hear if any manual drivers have had the ECU flash done and any improvements ? Also I assume there is no way to check the current ECU version apart from taking to Toyota ?

    Regards
    Rob

    Leave a comment:


  • Corigator
    replied
    cjd

    Is your problem related to how full the tank is at all?

    Leave a comment:

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