burbage

here are the readings - 20 in vac, 15 psi spike, 10-11 holding. It stops around 2000rpm, then goes up then stops then goes up. I changed the bpv, checked teh vac lines. Think its the n75?

Forcefeed18T

For me its at low rpm as I apply throttle to accelerate usually going uphill, I hit a "not so sweet spot" on the pedal. My boost fluctuates between 5-8psi up down up down up down...dammit until I either let off or push down on the pedal... Trying to work it out with my mech as he has since sent my chip back to AMS to reburn...I think the chip is the culprit as everything under the hood is new. See what happens....