Boost Spike!

[erald01]

Well i can't figure out what is causing my boost spike, it will spike to 17 psi and drop back to 10 psi, i know weird. I have a greddy boost controller and still can't figure it out the damn thing but i don't think thats the problem. Any ideas

 

[JayRolla]

Take the controller off and if it goes away you know its the controller. Check all your vacuum lines for leaks.

 

[turbolover10]

+1, its usually the controller that causes spike.

 

[erald01]

Thanx guys i thought it might have been the BC, but wasn't sure.

 

[Maglin]

+1, its usually the controller that causes spike.

Correction. It's user error with a EBC that causes spike.

Turn the controller off and see what your boost pressure is. If it's the stock actuator and you go past 14 PSI you hooked up your lines to the controller wrong. You should be using the NO port if it's a internal WG and NC port if it's external.

 

[erald01]

Correction. It's user error with a EBC that causes spike.

Turn the controller off and see what your boost pressure is. If it's the stock actuator and you go past 14 PSI you hooked up your lines to the controller wrong. You should be using the NO port if it's a internal WG and NC port if it's external.

well i have the 16g which has the stock WG, and the thing is my buddy hooked it up for me so i have no idea how he did it. He wanted to do it since he had the car at the shop

 

[xtreme-elements]

16g W/ Internal Waste... Check The Diaphram In The Wastegate Actuator.. Had One Leak Before And Would Cause Boost Spike And Leak Down As Well

 

[erald01]

16g W/ Internal Waste... Check The Diaphram In The Wastegate Actuator.. Had One Leak Before And Would Cause Boost Spike And Leak Down As Well

Do i need to remove anything to check the actuater? I did check it for a leak by spraying the carb cleaner, but i didn't notice anything

 

[JayRolla]

How is the mbc hooked up. Is it going from the actuator to the j-pipe, or through the bov line?