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Old 29-11-2005, 05:13 PM
  #6  
cosworth-daddy
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the dump valve has been fitted BUT i have lost a lot of boost from it what has gone wrong??? i changed the dump valve 2 the other 1 i had but then the problem got worse it then started to stool when on tick over i then took it up and down the road but it was poping and banging from the exhaust like little back fires but its was not miss fireing PLEASE HELP