Bogging Bad under Boost

[BoostedTT91]

I am running a VPC with keydiver chip. I was having problems with the car bogging down and jerking alittle under boost which i figured the map sensor was going. So i just replaced it with a GM 3 bar map and it made it worse. i can barely even make it up a steep hill now. It is wired up correctly, would the settings on the VPC/GCC cause this if they were way out of tune? It worked fine before exactly as it is now, then just started to bogg and jerk under boost so thats why i replaced the MAP. what else could be causing this?

i replaced the vaccumm hose today and made sure that was fine and no changes.
the logger results
RPM 3406rpms
INJP 4.86MS
o2 0.01V
TPS 75.7%
INJD 13.2%
TIMA 28 degrees
MAFS 257.8Hz

RPM 2812rpms
INJP 3.83ms
O2 .74V
TPS 32.4%
TIMA 31 degrees
MAFS 157.2hz

Im sure sure exactly what the HZ's are supposed to be but its hard to even get it at WOT cause as soon as u start to put alittle foot into it and start building boost, it just bogs down hard

 

[SBR Joe]

Do you have the chip set up for speed density? or is it setup for MAF still?


Joe
SBR

 

[BoostedTT91]

the chip is for the VPC and Map sensor. i dont know if the GM 3 bar map doesnt work with the VPC even though alot of people said it does. It still was bogging down with the original VPC map but only from 0-7psi but if i gave it some gas and got about 10psi it pulled fine. figured it was taking a crap so i swapped with a GM map and now its 100x worse

 

[BoostedTT91]

any ideas or advice?

 

[Jason B]

check your fuel pressure regulator solenoid on the firewall