Pop Splutter Idle And Jerkier When Coming Off Gas At Low Revs

[davey205 7 1 Cars]

SInce having some work done that required removal of the intake setup car idles as usual but I notice a pop splutterring idle and sounds a bit rough I'm confused as to whether this means its running too lean or rich ?

 

Another annoying problem is when your letting off the gas in low revs its far more shunty / jerky than it was.

 

Obviously I'm going to check for air leaks and clean out intake components then I was going to have a fiddle with the idle mixture as this should help the low rev and lift off jerkyness but am unsure whether its running lean or rich....

and so don't know which way to turn it.

 

 

Recently replaced temp sensor, tps and had a service and it was definatley not as jerky since work was done.... I think adjusting the mixture if above steps don't work will help but I need to know what symptoms point to too lean or rich?

Edited May 13, 2015 by davey205

[davey205 7 1 Cars]

Well, mystery solved it was the pipe going down to sad the plug had collapsed in on itself causing a massive airleak , mechanic had the intake apart to replace starter motor and hadn't noticed the plug problem.