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Thread: Boost being limited

  1. #1
    Join Date
    Feb 2011
    Location
    Bendigo
    Posts
    295
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    Boost being limited

    Just recently I have had my boost going into limp mode. Normally my ems gauge reads approx 18-20psi at full throttle. When it goes into limp mode it will only boost to 5.8psi.
    It's not the over boost surging. As I have had that before after I lent on the heat shield.
    It want clear itself. It needs the car turned off.
    Just wondering if anybody has any idea on the part that's faulty.

  2. #2
    Join Date
    Jul 2014
    Location
    west of Transylvania
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    3,783
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    take the pipe from the bottom of the wastegate modulator and connect it directly to the wastegate valve and see how it goes then...but the best would be to plug in a tester to see the MAP reading cos this is suspect too
    Discovery Td5 (2000), manual, tuned

  3. #3
    Join Date
    Feb 2011
    Location
    Bendigo
    Posts
    295
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    Will try that. Didn't even think of bypass the modulator.

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