Ok so heres how it works:
rules;
1.Peeps are allowed one shot (guess) each per day.
2.Royce cant play.
3.person who wins gets to put up the next (true) problem with their zook or past zooks.
4.Royce cant play
5.to win you have to be the first one to get the answer right exactly, in one line..................... no bullsh*t five line answers:
exactly the problem!!
6.state if its been running ok previous to the failure.
Ill go first....my 1.3 sierra.
wont idle smooth, noticeable from inside the cab, took about 20 mins to work out what was wrong, took some bits off during diagnosis (and put them back on again

) No previous maint performed.
So what did i find was the problem????
SZ