http://www.supras.org.nz/techinfo/TSRM/Default.htm Try this instead of the haynes. go step by step in the trouble shooting. My car was doing the same about 5 days ago, turned out to be the fuel pump. I had horrible fuel pressure. changed it and now its a beast again. Also when i first got the car it did the same thing, i unplugged the oxygen sensor and started right up and went fine. I was warned not to drive it with the oxygen sensor off because it could cause lean, rich problems. oh a new oxygen sensor (if it is the problem) is about $53.00 before shiping on this site
http://oxygensensors.com hope this helps