Hey Fellas...

I've got a '96 Runner...2.7 and completely stock. Been having a huge problem for the last 3-4 days. When in nuetral/park, idle and when stepped on the idle speed increases with no problems. Under load (in R/D/2/1) I get sputtering/stalling almost like a flooding is happening. When I am able to get it to highway speeds....I lose a lot of power. It's only been happening a short while...I'm wondering if it may be the Cat. Conv. that is causing a huge amount of back pressure... 413,000 kms and still kicking...can't be anything too big can it?