In a message dated 4/28/02 1:53:32 PM Central Daylight Time, Delorean17@xxxx writes: > Hi List, > Before the big Memphis trip I want to have my CO mixture tuned by a > local > shop. I see that my CO screw hole is plugged with something. Does this > pop > out or does it have to be drilled out? I have my intake off right now so > this would be the perfect time to do it. > > any help would be greatly appreciated > > Thanks > David David, if it is the factory seal, it must be drilled out. it is permanently sealed with a metal slug. if it is the original slug, i would leave it alone because it should never need adjusting for the life of the vehicle unless it has been tampered with, which would be evident if it was NOT the factory slug. if you are having rough idle or acceleration, the problem probably lies elsewhere and getting the CO adjusted is only going to be a bandaid for the main problem which will remain unsolved. replace all vacuum lines and T-intersections, check vacuum solenoids for proper operation, make sure your fuel system is ok with proper fuel pressures, change your fuel filter if you haven't in the last 15K miles, etc etc. unless i was POSITIVE that the CO was improper because of improper adjustments (however unlikely) i would leave that slug well enough alone!! Andy Soma576@xxxx 1982 DeLorean DMC-12 VIN#11596 Fargo, ND 58102 [Non-text portions of this message have been removed]