limp/safe mode? no boost at all =[

[jman8806]

ok i've been searching for this problem the past 3 days.
i cleaned my maf, replaced spark plugs, disconnect the batt and ecu. clean my filter/CAI and still having the same problem.

heres the problem when i drive boost wont even hit, it wont even let is past 1psi =[.. this happened when i was drivin home from work on monday in las vegas heat it was about 108-112 out side. it felt like a big turbo lag. i thought it was heatsoaked so i pulled over too cool of for a bit and it still was having problems. and now im thinkin im in limp/safe mode.

and i know its not the turbo because its still pretty new.
i got a ko4pc16 set up with the injectors and everything, godspeed fmic, hks cai.

i took it to autozone to see if i can get some codes but nothing came up. no CEL or anything.

any help would do...pleeeaseeee and thanks in advance

[Matt@JHM]

Well, limp mode would give you at least 5psi. Any abnormal sounds?

[erikas3]

Sounds like your wastegate actuator on the turbo went. I had the same symptoms.

[Yaktizzle417]

I'm guessing you have a boost gauge, and its reading normal vacuum?

[jman8806]

I'm guessing you have a boost gauge, and its reading normal vacuum?

yea i was thinking my wastegate went out. and yea my boost gauge is reading normal vac

[Yaktizzle417]

Yeah definitely check your wastegate.

Lol, when mine broke, the plunger would fall back into the vent. So it was like DSM style'd cranked wastegate.