You should not be messing with the mixture adjustment screw. It is a very sensitive adjustment so that 1/8 turn can mean the difference between passing emmisions and not passing. Generally they do not need to be adjusted. If there is an emmision problem it is usually corectable by finding the problem and repairing or replacing it, not "tweaking" adjustment screws. Now that you have moved it the only way to properly reset it is to get on an exhaust gas anylizer. To cure a hunting problem make sure the air flow sensor (the round plate) isn't rubbing the housing. Next have all of the injectors cleaned and tested so that you can get a set calibrated very close to each other. Do a compression test on the engine and verify all cylinders within less than 5%. Install new spark plugs and wires. Set the timing. If you do all of this and have no vacuum leaks the engine will not hunt or surge at idle when warm. Do not try to correct a hard start problem by adjustments as there is no adjustment that will help unless the mixture screw is WAY out of adjustment. Make very sure that there is NO vacuum leak at the hole above the mixture screw, there is supposed to be a tamperproof plug in there but I have seen golf tees, tape, screws, etc and sometimes nothing at all!!! David Teitelbaum vin 10757 -- In dmcnews@xxxx, DHughes030@xxxx wrote: > In a message dated 3/11/02 3:33:45 PM Pacific Standard Time, > jtrealty@xxxx writes: > > > > What do you mean by "adjusting the idle screws"? The 3 brass screws > > are supposed to be lightly closed period > > David, I am talking about the idle mixture screw on the air flow sensor arm. > Walt, I'm certain that the recent adjustment resulted in the unmasking of > this concern because I set the screw right a few months ago and found that it