Hi all
My superspec has developed a very intermittent misfire (I think) and the idle speed has risen from 900rpm to around 1100.
The misfire or whatever it is has always lurked about, it can happen when just tootling along and then all of a sudden theres a slight hiccup as if my foot slid off the accelerator or it will happen when I'm giving it some beans overtaking something which is a little scary especially when something is coming the other way !!
So I decided to clean the throttle assy with some carb cleaner ( gave it a good few squirts) and now my idle speed has increased and changing the idle value in the ecu doesn't seem to make a difference, ohh and a little more difficult to start from cold.
The car has had new coil, leads and plugs (fancy platinum ones, may put Billy basic back in to see).
All ideas welcome
On the plus side ive fixed the clonk on pulling away (2 loose bolts on propshaft) and the play in wheel bearing (centre but not tightened sufficiently)
1 step forward and 2 back