EclipseGSX1995
Probationary Member
- 13
- 0
- Nov 6, 2010
-
Boston,
Massachusetts
I got a Greddy Profec A boost controller. Today I turned it on for first time since I got the car. When boost controller is off, it maintains its factory 10-12psi without any problems, but after I turned on Greddy Profec and set it to 14-15psi it acted weird. It goes to about 5k RPM doing stock boost and suddenly boost starts to climb very fastly. I did not hold it until it stops climbing, but I saw it climbing to more than 20 psi. Since I have stock injectors it looses power when boost jumps so high, so i just lift my foot from the gas. Now i turned boost controller off and it is running stock boost without any issues. Do you have any suggestions what is causing boost jump?