I grounded and now it has no stumble and even starts better, still doesnt idle though.

 

Have you adjusted your idle speed ?

Here is a link on how to adust it .

http://howto.globalvicinity.com/gv_w...i=61&co=1&vi=1

 

well i have a leak between my UIM and LIM so i know what it is, but the funny thing is about the grounding is that i had all three wires cut and ungrounded and it ran the same after i gounded them. this seems really werid i un-grounded them and it ran better then factory grounds.

 

So you re-soldered or crimped the ground wires at the ECU and the car ran worse ? and yeah sounds like your gonna need a gasket for that leak . Also there are 4 ground wires at the ECU above you mentioned three


Also here is another link on proper grounding under the hood .


http://aaroncake.net/RX-7/grounding.htm