Lack of boost [Archive]

AwdGSX13

12-24-2006, 10:10 PM

Ok so the car is a 1991 talon awd, it has less than 2k on the short block, and it has an electronic boost controller which im planning to get rid of for an mbc. The problem is no matter what setting its on it will only run about 6 psi in first and second and maxes at 12 psi in third ect. I checked for vacuum leaks with a smoke machine and took care of the few i had and it still wont boost any more. It has an idle surge also which may be related, havnt figure out why it surges, plans to buy a block off plate but, the question is could it be a bad turbo (14b with unknown mileage on it) or something else. Also this may be a dumb question, but could this problem be related to my lack of oil pressure??? any suggestions are helpful, thanks!

b00stcreep21

12-24-2006, 11:07 PM

Boost leaks my friend. Also, if you have a lack of oil pressure, you might have a couple more problems than boost leaks at that...

Bode

12-25-2006, 09:51 AM

If you need a boost leak tester, I have my homemade one I can run up to your work next time you are there. PM me if you need it.

Enes

12-25-2006, 11:19 AM

where are you located.? i got a boost leak tester too

AwdGSX13

12-26-2006, 09:59 PM

where are you located.? i got a boost leak tester too

im located in eagan? that might be helpful. thanks ill pm you

Enes

12-27-2006, 12:11 AM

i'm up in Blaine, north of the cities.. work downtown but I haven't gone into the office for last 2 months, just working from home now days ;p

The one i have is perfict for a 50 trim, for a 14b might be a bit too big and might pop off if you push it over 15 psi.. i had it on mine at around 25psi no problem.

-E

AwdGSX13

12-27-2006, 04:55 PM

i'm up in Blaine, north of the cities.. work downtown but I haven't gone into the office for last 2 months, just working from home now days ;p

The one i have is perfict for a 50 trim, for a 14b might be a bit too big and might pop off if you push it over 15 psi.. i had it on mine at around 25psi no problem.

-E

hmmm... well i will see what i can find, Bode said he might have one i could use. thanks for the help

scheides

12-27-2006, 08:19 PM

Hrm, I say blame the electronic boost controller. Throw a MBC in there and see what happens.

AwdGSX13

12-28-2006, 05:15 PM

im thinking its probably the electronic boost controller also, im gonna go out and get an mbc tomorrow.