lurching/bogging while driving

[MA70Snowman]

Okay this problem has been getting more and more annoying.

Problem:
So after I accelerate from a stop and get into second and gradually accelerate (think good driving infront of a cop) the engine will bog, lurch, repeatedly, almost sounds like the engine dies for a second then catches, rinse repeate, To avoid it i'll shift higher, for a second till it does it again.. then shift, soon i'm sitting in 5th gear at 30-40 mph. around 1k rpm. Rpm doesn't seem to be a factor as it does it through out. The only way i've been able to EASE it, is back off the throttle. seems anything over 2% throttle starts it up again.

MODS:
Stock internals.
Stock Ct-26
HKS BOV
Greddy Profec B Spec II Boost Controller
AFPR (@ 26 psi static)
550CC RX7 injectors
MAFT Pro, w/ speed density
AFM eliminated.
Stock 02 eliminated
LC-1 W/B O2
Walboro 255LPH pump

any in sight would be appreciated. Thanks guys.

 

[spoolint78]

check for boost leaks, and codes to start.

 

[MA70Snowman]

sorry was in a rush to post, pulled codes and got nothing there. and a boost leak turned up negative. This is why i'm stumpped.

Boost leak test:

Rubber adapter w/ a Schradder valve, clamped onto turbo. blew compressed air in until 13.5 PSI, using an inline regulator.

 

[spoolint78]

check the spark plug gap.
Make sure all the grounds are connected.

 

[MA70Snowman]

brand new champion copper. gapped .36.

I'll check grounds but nothings changed. But at least it gives me a direction.

 

[spoolint78]

bring the gap down to .028

 

[MA70Snowman]

bring the gap down to .028

I'll try that. But i'm pretty sure i found my problem.. poking under the hood. my vac line to the AFPR had come off at the manifold and was sitting beside it so at a glance it looked connected. still have some bugs but i think thats the tune in the MAFT Pro