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Thread: surging td5

  1. 27th December 2012, 04:05 PM #1
    rangietragic's Avatar
    rangietragic
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    surging td5

    My 2000 d2 is surging under acceleration.Have changed boost modulator,checked the usual hoses ect,new injector loom,no change.However when changing loom i thought i smelt a faint burnt smell,maybe crook injector,any ideas?
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  2. 27th December 2012, 06:47 PM #2
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    dswatts
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    A faulty maf can also cause surging. Try disconnecting it and see what happens.
    HTH
    03 Disco 2a, TD5, Olso blue, 7 seater, Auto, Chipped, EGR'd, 2"lift, SLS, Dual Batteries, Provent, TM-2 engine saver
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  3. 27th December 2012, 07:05 PM #3
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    Is there oil at the red plug into the ECU?
    From experiance only a little oil here can cause serging.
    I fixed my loom(which you have replaced) and cleaned the plug with contact spray.
    Cheers, Kyle



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  4. 27th December 2012, 07:09 PM #4
    Graeme
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    Have you checked that the wastegate isn't frozen and that the wastegate actuator works?
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  5. 27th December 2012, 07:42 PM #5
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    OffTrack
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    Surging sounds like an over boost condition to me, so Graeme's suggestion to look for a sticking wastegate sounds on point if you have already checked the 3 small hoses from connected to the Modulator for splits etc, etc.

    cheers
    Paul
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  6. 27th December 2012, 07:46 PM #6
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    Quote Originally Posted by alien View Post
    Is there oil at the red plug into the ECU?
    From experiance only a little oil here can cause serging.
    I fixed my loom(which you have replaced) and cleaned the plug with contact spray.
    No oil.
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  7. 27th December 2012, 07:49 PM #7
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    Quote Originally Posted by Graeme View Post
    Have you checked that the wastegate isn't frozen and that the wastegate actuator works?
    I can move wastegate actuator,seems to be a shrill whistling or tinkling noise.Turbo?
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  8. 27th December 2012, 08:06 PM #8
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    I had some surging in mine (at around 2700-2900 rpm) until I replaced the MAF. No surging and much better performance since I replaced it the other day.
    Cost was $250...... well worth the money in my book!
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  9. 27th December 2012, 08:43 PM #9
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    Quote Originally Posted by wardy1 View Post
    I had some surging in mine (at around 2700-2900 rpm) until I replaced the MAF. No surging and much better performance since I replaced it the other day.
    Cost was $250...... well worth the money in my book!
    Same here,changed it,no surge,better performance,etc.Mine surged badly under hard acceleration at 3000rpm & over.Under 3000rpm it drove reasonably well.
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