after warm up stumbles but dont die

[greeneyegi]

ive got my new rebuilt,ported head, full roller motor running great.runnin for a few hundred miles now.
after grounding the 5vdc wire on my idle position circuit for a min or so,it started doing this.it runs great then after a few miles it idles real ruff and i cant build any boost,it falls on its face.it dosnt really backfire just sounds like its running on 2 cylinders.ive got a few logs here if someone can look and give me an idea of the issue.kinda think maybe a new computer?
last couple of days it didnt do it.and it hasnt done this on the beginning of the first start of day.ive changed the maf sensor back to stock it didnt help.anyideas on next check?ive got pxl wideband and input four is my fuel pressure.

 

[pacecarta]

why would you ground the 5v iac ??

looks like you may have damaged the TPS sensor

does the tps go to 4.50 or higher at WOT ? from data id say no

check the map and tps and verify 5v on gray wire if thats good ....key on engine off depress throttle and see if tps reads linear up to 4.5volts

 

[greeneyegi]

yes ,the voltage is good,i did check the tps and i get 4.7 floored.i was snooping around more and my ic hose going to my throttle body fell off.i guess when it popped last it pushed it off.i reattached and its great right now.having an issue that dosnt happen all the time sucks,when it does this again what else should i check voltage wise while its running crappy.

 

[highboostgn]

my ic hose going to my throttle body fell off..

That ll do it

 

[greeneyegi]

im hoping maybe it was coming off ,probably not,but i guess ill wait and see ,
thanks guys

 

[pacecarta]

t-bar hose clamps and good quality hoses