my friends just got a MR2 non-supercharged and he has idling problems like he starts the car..it idles for a few seconds then it stalls and the other problem is that when he floors it it runs good but when he hits 5000 rpms it boggs really bad...he wanted me to post it cause no one has been able to help him thanks

 

Tell him to do a basic tune up consisting of new spark plugs, wires, distributor cap and rotor along with a new fuel filter. They don't have these things for nothing! Its a must if you wan't you're car to run properly.

 

Yeah, I'd say check the ignition components first. If not, try here:

http://board.mr2faq.com