Boost solenoid
 

Have an 03 evo 8 was haveing trouble boosting factory boost it was 10 lbs I hooked it up to machine and the error code said boost solenoid fault so I bought another oem soleniod and put it on the same way the other one came off easy **** but it now boost fine but runs weird idle funny acts like it struggle stay cranked I've checked everything lines etc I really need your help guys thx

Holy run-on sentence Batman! Please use punctuations man, I can hardly understand what you wrote. Not being a d***, just want to help.

Did you replace bcs with the battery plugged it? I would also check for boost leak.

Yes the battery was plugged up still, I didn't take anything off except my bcs and the oem one back on the same way.