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lack of boost

  1. [Meriva A] [02-09] Lack of power and black smoke!

    Astra, Corsa, Zafira, Meriva, Adam, Cascada, Agila
    Hi all, new here so bear with me on this. I recently purchased a Vauxhall Meriva A 1.7DTI 2005 after changing from a Mazda 3 2.0 Petrol, as needed more space as have 2 kids and a dog now. As stated above I'm currently dealing with lack of power and black smoke coming from the exhaust, the...
  2. [Zafira B] [05---] Z19DT - Boost Issues

    Astra, Corsa, Zafira, Meriva, Adam, Cascada, Agila
    I have a 2007 z19dt zafira. Recently ive had no boost before 2.5k then its like normal. no smoke, no noises, nothing out of the ordinary other than lack of boost. All appeared after failed MAP sensor and replaced it. Now running again but lacking about 0.3 bar off the demand on ECU Im...
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