bus will start up and sit at idle, but when revved just drops to zero and stalls, or bounces back up to idle...
it used to do it very infrequently but now its all the time, cold or hot.
lt starts straight back up but then does it again say at a traffic light or junction . I have checked crappy idle stabilisation unit thingy, and it does the same with or without it plugged in! also cleaned out idle control valve, which appears to be working and checked all hoses for leaks... still the same!!!
anyone with any ideas?
![Shocked :shock:](./images/smilies/icon_eek.gif)