gqcode

iTrader: (14)

I know the car need to be retune. But my question is when the vehicle was in Vegas I boosted 26 Psi here it only get to 22psi is this normal? I have a manual boost controller and this morning I log at WOT 20 psi. The car is running rich so I will be installing my wideband very soon to get more accurate data. My friend mentions that when I get on boost a cloud of black smoke come out the exhaust.
Thanx for the help

ddlopresti

iTrader: (1)

black smoke with no cat is normal under boost. How do you know that you are running rich without a WB? ALso, if you are in fact running rich and not hitting boost that sounds like a boost leak to me, though it could also be other things.

P.S. where in VA?

gqcode

iTrader: (14)

i live in hampton but in vegas i dont recall having a cloud of black smoke.

ddlopresti

iTrader: (1)

some smoke is normal, without seeing a vid it would be hard to gauge it. I know that i barely ever notice it when i'm driving but when friends are behind me they tell me about it.

gqcode

iTrader: (14)

is the drop from 25 to 22 psi normal?

lostsoulsevo

iTrader: (10)

What's the elevation in Vegas compared to Virginia? And what fuel were you using in Vegas? And Virginia?

Ev0ikon

iTrader: (18)

Sounds like boost leak to me.

blackoutVIII

Boost leak!!!

IzzyRS

iTrader: (8)

Do a boost leak test. You also gained aver 2000 feet in elevation, that will affect your tune and boost, I am not sure if it should affect it that much though.

codgi

iTrader: (22)

I'd do the boost leak test first. If there is a large amount of elevation change then yes the MBC will be affected (even though it shouldn't be THAT much) since it doesn't have a way to know and compensate for that change as smarter boost control systems do.