Im stuck. I recently cleaned out the egr and fitted it back to the engine, after fitting an egr delete kit that made the car run horrible. When done, the ASV cut off vaccumm valve would shut straight away on starting the car, stalling it straight away. I did a bit of digging and thought that it may be the ASV solenoid not working properly, thinking when blanking the vaccum pipes off for the delete kit i had damaged it somehow. so i got one off ebay, fitted it, now the car starts and runs without cutting out. However !!!! now when been driving for a few minutes, when turning off the engine the car shudders a touch. But unless you leave it half hour before restarting, it shakes like a tractor, takes two turns to start and you have to floor the accelerator even then ??? Once started though sems to run ok. Any ideas please ?