max headroom

Wow, Thanks for the quick responses guys. You seem to know your stuff. Yes, it will be the 18e so now I know which service parts to get. I will have a play with that air valve and see what happens

Hi, Just got myself a D reg mk2 cabrio and looking forward to enjoying it. Just a few things I could do with help for a start...... Firstly what is the engine known as? ( I have heard of 18E, 18SE, C18NE etc) but I dont know which I have. It appears to have the LE Jetronic injection but this is supposed to be pre 1987 according to the Haynes manual. Also it runs a bit rough and Idle speed starts off at around 1000rpm increasing to 1300 as it gets warmer! Any ideas chaps? TIA