Here is the situation: 91 300zxTT, 118k miles, runs pretty good. This last month it has lost a lot of performance. It seems like everyday it keeps loosing more and more torque. finally this last week it felt like i was running on 3 cylinders, my car was shaking like crazy. Did the normal tune up stuff, new plugs, checked the air filter, etc. with the new plugs it did nothing different. After that, i started checking all the electrical harnesses and found them to all be pretty crappy. With no money (or time) to get new harnesses i got a tube of dielectric grease and smothered the crap out of every connection i could find (MAS, CAS, TPS, coil harnesses, everything. After that i filled up the tank with premium and some injector cleaner and it ran like a champ! Better than when i first got it. The next day on the drive to work i noticed a little bit of a high idle after first starting it and a little bit of a mis-fire, nothing too bad though. After work i went to start it and it started fine, idled a little high and then died after about 10 seconds. I checked all the connections to make sure everything was still connected properly, tried cranking it a few times and still nothing. I then tried starting it at wide-open throttle and the car started (barely). It still wanted to die so i kept my foot on the peddle to keep it at about 2000rpm until it was warmed up. Then i drove it on the freeway for a while and it was fine. I then stopped to get gas and it wouldn't start. I got the car towed ($70) this morning to my house and am waiting to get off work to go check it out. I have a factory service manual that i have been reading up on so i'm pretty sure what i need to check out but any suggestions would be cool... Thanks guys!