Pretty much what the title says. new 22re swap, motor is running rich, i changed afm twice, 02 twice, swapped ecm also. I was pulled a vacum line then it leaned out and idled perfect. Any help would be appreciated.

 

You changed the AFM, but have you tried adjusting the AFM?

 

The AFM should be pre-set from the factory and should not need adjustment.
Something else should be the real problem.

 

Same problem I'm having. My 1987 Extra cab SR5 22RE is running rich and I haven't a clue why.

 

Stop throwing parts at it and diagnose it. Possible Temp sensor? Double check the vacuum hoses for proper location. Make sure coolant is flowing everywhere. Grab all the hoses and make sure they are hot