Boost problems

duren03msp

Member
:
2003 mazdaspeed protege
I have been experiencing some boost issues that i THINK is caused by my cracked turbo manifold.

lets see if anyone else has any other ideas.

So here's whats happening, the car drives great when just cruising around but once i try to get into boost it seems to take longer than it used to to spool. once it gets into boost i can hear the turbo really working and my gauge reads normal about 8-9 psi and doesn't fluctuate much at all. maybe 1/4 -1/2 psi at max boost. but the car doesnt pull like it used to. it pulls fine up to about 2-3 psi, anything after that it feels as if i am holding my e-brake up a bit because it just doesnt pull as hard.
 
Stock tune? Try to reset the ECU and drive it when it is cool before the intercooler heatsoaks to see how it runs.
 
yes stock tune. and i have noticed that when i drive to work at 630am it usually pulls great because the intercooler is cold and so is the air.
 
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