I have an 03' WRX w/ a Monster P&P TD-04, Process West CAI (65mm MAF tube), Gimmick Inlet, catless up, catless 3" TBE, Walbro 255 and an XPT stage II map.

I was driving the car tonight in about 50 degree weather and I was hitting 18lbs in first and 19lbs in 2nd and 3rd (I didn't want to push it in 4th or 5th). My car usually runs about 13-14lbs in 1st and 16-17lbs in 2nd-5th in the usual 70-80 degree daytime temps.

I have been running this map with these mods. for about a year and have never had a problem. I did notice that for a while the boost was surging so I tightened the wastegate a half a turn and it seemed to fix it. After a week I stopepd hitting target boost so I loosened it a half a turn. Everytime I did this I re-set the ECU. Now my boost is going up to 19lbs but holding then tapering off to redline like it should.

My question is what could be causing this?

P.S.

I'm sorry for such a long post but I'm trying to give as much info as possible.