You asked for a lot of information. Here are some asnwers for you. Check the linkage at the gas pedal, if bent it prevents you from opening the throttle plates all the way (or maybe the carpet or floor mat is in the way). The micro you hit at WOT (Wide Open Throtle) tells the lambda to run "flat out". The extra plug by the Lambda micro is for the kick-down switch for the automatic transmission (omitted for the 5-speed). DON'T TOUCH THE IDLE SCREW THAT TOUCHES THE IDLE MICRO! Unless someone f-cked with it, LEAVE IT ALONE! Just make sure that at idle it trips the micro without beating it up. It is not an idle speed it only tells the idle system to run. You CAN replace the distributer cap, rotor, and ignition wires without disassembling the motor but it is much easier if you remove the fuel mixture unit and intake manifold. As long as you are digging in that deep you should replace all the seals and hoses and water pump. Rob Grady will tell you you need his Water Pump Master Kit. If all your parts are origional you really do need it. You should also replace all the hoses and belts and idler bearings too. The best way to find vacuum leaks is to disconnect the vacuum lines and see if the motor runs better unless you have a vacuum tester so you can test things individually. A hissing mode switch is a vacuum leak. Just snug up all three brass screws and leave them alone. The idle mixture screw is INSIDE the unit under a tamperproof plug (if it is still there). At the least make sure there is a plug in it. It is just to the rear of the air intake and air sensor plate. DON'T START TURNING IT WITHOUT AN EXHAUST GAS ANALYZER. Chances are (if it wasn't f-cked with) it is close enough to pass inspection if everything else is OK. Pull the front left wheel and see if the shock is still there and if anything is hitting it, it might have come loose or bent and is hitting something. David Teitelbaum vin 10757 --- In dmcnews@xxxx, "James La Londe" <deloreandmcxii@xxxx> wrote: > I need a new idle spd microswitch... yeah I gotta spend 75 bucks on a tinyelectronic piece BUT i know what the problem is. I also adjusted the throttle linkage. A problem i noted while the throttle cover was off.. when the gas is depressed all the way the thrttle still didn't twist all the way. After adjusting the best I can manage is JUST before actuating the full-throttle switch.. otherwise I bring the idle back up. Is there supposed to be something plugged into the plug next to where the idle spd micro plugs in (plug plug plug). I'm doing a tune up sometime this week. I asked Rob Grady, and as always he was very helpful.. BUT in this case not enough so. Damn that distributor... HELP! Any tips... ideas on getting that con-sarn thing out of it's little nook at the very back of the engine? it is safe to remove the fuel distributor w/o messing up some fine adjustment and w/o having gas all over the engine? Always, what's the best way to start finding any vacuum leaks.. > > I mean it's not like I can see the air leaking out :P Where should I start? It seems to idle ok with the microswitch hard-wired, so i doubt vacuum problems... but i'd like to give her a once-over anyways. I went to snug the bass bolt on the intake closest to the rear of the veh, an with literaly no torque i broke the head off... think it's safe still? > > Ok i'l blind, some point me toward the idle adjust screw. Between the fuel distributor and the intake right? I can't see it!!! Picture anyone? Oil, Coolant, fuel, wiper fluid... what other fluids are there.. (manual tranny).. trying to identify this greenish oily stuff. doesn't seems like oil or antifreeze or a mixture thereof... road-nasty?? Every time i hit a bump there is a "bing" (like a service bell) from the passenger front wheel? Any ideas? A little gremlin hitting the spring with a ballpeen hammer was my guess... but he must keep hiding. Michigan roads suck! ahhhh... HELP!! thank you thank you thank you THANK YOU!! i don't know how some of you guy(and girls) find time to answer all of the less-experienced people's questions... but I think I speak for all the DeLorean novices when i say THANKS!!!!!!!!!! > > -James La Londe > 1981 Delorean DMC-12 vin#001697 LicPlate DMC XII > 1998 Kawasaki Vulcan 800 > 1992 Ford Probe GT