So I did simplified sequential few weeks ago,
car worked great for 2 weeks and i got a oil leak from the oil injection.
i fixed the leak and now the car starts great runs good but under wot car bogs and quits. if i drive before boost the car is fine soon as i hit the gas it bogs hard.
Could this be possible tps or map?

my grounds are good and i have no broke wires....

 

Ok so map sensor checked out ok. Tps was bad. Replaced runs a1.
Just thought I'd mention.

 

Ok so now it's back to square one.
car still doing the same thing. checked tps and voltages are good.
car spits sputters and will die if i hold the throttle anything over half throttle to full throttle.
idles good and runs smooth under half throttle.

 

Are you using the stock ECU? If so, have you check for engine codes?

 

Did you change anything else at that time? Mine would cut out like you described till I put in a twin power.

 

alright so went out today and think I thought of everything but the coils. changed the coils and whaa laa bad coil. not sure which one as i changed the lead coils and trailing cols but it was the problem. no more problems all day...what next hahaha