SR issues after swap... bogging, high idle, rough idle low..HALP!!

[BlackZenki82]

so yeah, i called some friends, asked them, did some research on the intarwebz... and couldn't come up with a definite answer, so i'll run it by you guys...

everything before the swap ran AWESOME, high 12 sec car and all, smooth idle, no problemos....

now that that's out of the way, here's the symptoms... when i rev up and get into boost, around 4-5K RPM it bogs like a SOB, watching my wideband, i see it getting richer and richer as the boost rises, and than WHAMN!! it leans out, off the gauge... WTF....

i've tried 2 different ECUs, a stocker, a GRID tuned, and even my Nistune with the S13 SR20DET base map... i've turned the GReddy Profec B spec 2 off, and on, and it does it either way, at the stock 7lbs psi, and the daily setting on the EBC of 11.5... it's like as soon as it hits full boost, on either setting, it just leans out... like a fuel cut..

also, when the idle sits "low" it sits around 1200K, and then slowly as the engine warms up, creeps up to 200-2200K rpm and stays there... this i attributed to the bad coolant temp sensor i had so i went ahead and replaced it with a new OEM unit...

i've checked all couplers, and vac lines (low idle is @ -15/16Hg), and then rechecked them all.... i went over the couplers twice, three times, and tightened all the clamps... nothing seems to work...

my motor is set up EXACTLY the way it was when i had it in the gold car (my previous S14, got a new one to put my current motor in)...

my thoughts on possible problems-

Faulty MAFpossible (although unlikely), boost leakIACV going bad

I'm lost, so if anyone can help, it'd be greatly appreciated

[maryjane]

1, hook up the damm wideband!2, bring car over3, bring beers over4, sell me the other s14 shell!!!!!!!!!!!!!!!!!!!!!

[BlackZenki82]

i hooked it up.... falls flat on it's face (lean) right at 4-4.5krpm

[jwren]

you got a way to check fuel press or try changing the reg?

[sileightyB]

sounds like a maf problem to me. Get some maf cleaner if that doesnt work buy a new one or use one of a z or somethin

[maryjane]

hes running the stock sr maf, (pos) idk wtf happened between your lil swap ordeal you had going on but something got fd up, it was runnign last time i was round it, mabey she just misses her real daddy! falls flat lean? i dont think you swapped the 255 = fail

[BlackZenki82]

ryan and i installed the WB 255... so i know it works... as far as the stock maf, yeah, it's good... worked PERFECT a week ago... ask maryjane, he rode in it, was running great then...

also, my weird idle was fixed... new alternator.... motor runs awesome at 13.5 volts, and not the slowly draining 11.2V it was running at...

might have fixed my bogging issue as well, but i haven't had a chance to road test it yet...