I just got my second db2, and need help with bogging issues. When taking off, car bogs from 2k rpm to 4k rpm. The car seems to need more fuel when going through those rpms, but this issue only happens when sitting in traffic on a hot day. I would try to give it more gas, but doesnt help, untill it goes pass 4k, and everything run like normal. I have NO CEL, and have replaced FUEL FILTER, FUEL RAIL, INJECTORS, and FPR so far. Ignition coil should be good, cause it came with an msd blaster coil and msd 6a ignition. Main relay is good for sure. Replaced all the IM sensors ie MAP, TPS, and IAT, but yet still same bogging issue. I then went and took out the p30 that was in there, and used my friend chipped p28, it was chipped with b16 base map, with I/H/E, car seemed to run better, but issues remained not so much, but it is there. I just cant seem to find the problem. I'm getting a hint that it could be the fuel pump because it was orginal, but wanted any advice or opinions. Heres is some specs on the car that might help. If you guys need anymore info just ask thanks in advance for the help.

Orginal stock b17a1 with 170xxx
Skunk 2 IM
dc header
aem intake
S1 Tranny
ACT clutch

 

only time my integ bogged was when the vc gasket went to hell and oil was all over the top of my plugs

 

I just went to check on my plugs, its as dry as the desert. They pretty new, and has been gapped correctly, I then checked on the cap and rotor, and both looked good.

 

Is there anyway it could be main relay, just being to hot, and not enough connection to power at certain rpms? Could a potentially bad fuel pump be the cause of this?