ok so i rebuilt my turbo and screwed up the balance. i plan to have it re-balanced at the gpop shop in AZ but for now i bought a used stock turbo to use. got the turbo, inspected it, cleaned it up, and everything looked good.

turns out the turbo i had on originally wasn't stock, so i replaced an upgraded turbo with a stock turbo. now i am in a slightly more af a rush to send off mine to be re-balanced but I need transportation in the mean time so i left the stock turbo on the car.

the problem is it idles good, high but good. when i step on the gas all power drops out. if I hold the gas down slightly then it lopes pretty bad.

any ideas?

i'm thinking vacuum or boost leak but i'm at a loss of where. i'm sure i put everything back correctly and tightly. if no one has any ideas i'll just keep looking for a leak somewhere.

Sounds like an intake/IC pipe isn't secured properly. I'd go over all of them again, make sure all the clamps are tight.

It also wouldn't hurt to test the AFM per the TSRM:

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=FI&P=96

OK so i had a vacuum leak on the driver side where i wasn't working. apparently a hose that i had just replaced broke off cause i clamped it down too tight.

After i repaired the vacuum leak the computer registered a fault code finally and from previous experience i know the cause. during all the work one day it started raining and my AFM got wet. so now it's bad and needs replacing. but at least i have a reason to upgrade to a Lexus AFM. while I am at it I am just going to go ahead and send my turbo off to be re-balanced that way a have a upgraded turbo and AFM. I'm also going to have to ask the turbo shop what size wheel upgrade i have as i can't tell by looking at it.

As I am going to be using my original turbo, I have a spare stock ct26 available for someone who needs it.

How much you want for the turbo? My turbo just went out and need a turbo asap. Email me at tiennguyencao@yahoo.com