help needed, done engine rebuild, started car and it run smooth for 2 days, car was just used short runs and tick over to get pass mot. the car is now lumpy on tick over and when driving coasting the car seems to miss ever so slighty

 

would a blowing turbo up pipe be the cause of this

 

Can be, had that issue with my car, too much air in there, made her run like a dog

Tony

 

thanks i definately try sealing is as it is quite new an its the bung that is leaking.

 

I had idle problems when I chanegd my engine, it turned out to be the inlet manifold was not tight enough and the o ring on the idle control valve was not seated properly.