Hey guys..

I had my car tuned/dynoed and boost was great. It carried 9 psi perfect. Something werid is going on now though.. When ever i boost it comes on great then falls back down to almost zero then tries to come back up. I thought it might be a waste gate problem, but i turned to boost controller off and 5 psi is nice and smooth. With the boost controller on it hesistaes really bad. Anyone have any experiance with these controllers?

I tried it both on manual and auto. and the same thing happens every time.

 

there's no way it's a controller problem if boost comes on then falls to zero..........boost will never go below the wastegate spring setting unless the spring is changed or there is a leak.

 

SORRY

What ment to say was it was going back down to stock boost. I was thinking about what the graph looked like and thought of zero. When i graph the boost out it, it comes on smooth and the has a quick drop down to wastegate spring pressure then tries to shoot back up to 8-9psi

 

what is the gain set at (if there is such on the e-01) ?

 

maybe a leak in the line going from the boost solenoid to the wastegate or to the boost solenoid, check all your lines...

 

gain is set on 10 and i check all vacuum lines... no leaks. Maybe a solenoid?

 

bump

 

I also have a J&S safegaurd on the car, think that would be a factor?

 

No.

If you are shooting for 9 psi set you start boost at 7 psi, do a datalog with the e01 and lets see what the boost is doing vs rpms