My car was felling a bit juddery on boost, So i put my car in for a service and they changed the spark plugs, i told them about the problems and after the spark plugs where changed it felt alright, but now the problem seam's to be back, ive cleaned the boost solonoid.
The car idles ok and seam's to drive better when the weather's not hot
Does anyone know what this might be ?

Thanks
James
My99 UK Turbo

 

mine did that amd the fuel pump has just died so it could be that possible,then i mite be talking out my *** ha ha

ive just put new plugs in today and also cleaned the boost soleinod ,but am waiting on the fuel pump to come to test my theory
hope this can help
matt

 

you will have slight boost problem with this weather being so hot,scoobys dont like it to hot

 

just fitted my fuel pump and reset the ecu ,have done about 30 miles today and the engine feels much more crisp and alive (no more on/off boost feeling)