Hi all, i have a 53 reg expert 1.9 diesel, which is holding back on the acceleration, if i take one of the vacuum pipes off the butterfly valve control unit on the egr unit it runs great the minute i put it back on and drive it starts to hold back. It also kicks out loads of black smoke so i have to put the pedal further down and then the van will shoot off, i have replaced the fuel filter and air, and also changed the intake manifold rubber o rings. it has also been plugged into a computer and doesn`t show any fault codes or no engine management light is coming on. can anyone please help as this is really starting to get on my t*ts.
Your answers would be appreciated.....
Your answers would be appreciated.....