Hey all, at long last i am pleased to report that i have solved the mystery of why my car never wants to settle down at idle!! the problem i have had for over a year is that when my car is warmed up, it always liked to fluctuate between 500 and 1000 RPM, always wavering back and forth, never staying still like a normal car should. i replaced lots of original parts including the whole ignition system plus ignition coil, getting the fuel system evaluated and adjusted by grady, playing with the throttle linkage, etc etc. nothing seemed to work. i finally had the ignition timing checked again and this time after some investigation it was found that my car was suffering from a pre-advance condition at idle, which according to the shop manual shouldn't be happening. when we checked around we found that the ignition vacuum canister which is located directly behind the fuel distributer was not operating correctly. it was causing the ignition advance solenoid to energize prematurely causing the off-timing effect at idle. this is something i never would have suspected or discovered if the timing hadn't been checked!! we found that when we disconnected the middle vaccum line to the canister and plugged it, the car returned to normal timing at idle and the idle stabilized!! it was a beautiful sound!! today i got a new canister from Grady and installed it and VOILA! problem solved. now i just need to get my mixture checked again cuz i swear i am still running a little rich... anyway, if your car seems to be perfect except for the idle never wanting to stabilize, you might try this test to see if your canister is broken too. just one more thing to check!! Andy Soma576@xxxx 1982 DeLorean DMC-12 VIN#11596 Fargo, ND 58102 [Non-text portions of this message have been removed]