ThaiTea

iTrader: (14)

I need help figuring out why a turbo control would be stuck in the on position.

Now before you start flaming I have been thru all troubleshooting guides and links in the FAQ that how I got to this point.

I have identified the component that is leading to my issue.

Symptom: Sometime when I stay boost past primary and into secondary and staying in secondary for a long time(4th and 5th Gear), I would temporary loose my primary once I wind down. By temporary I mean sometime just a few second, sometime the whole drive home. But it usually goes away after a few minutes, so I can never get home soon enough to crawl under and identify which of the valves are stuck.
Tonite I lost primary the whole way home. It sounds like someone is shaking a paint can when I push on the gas, the car wont primary at all but boost in secondary just fine just like every time. I was able to get under the car and look at the position of the 3 actuators. Then I went back for a drive to try to get it to go away and it fixed it self so I can home and look again. Here I identify that the turbo-control actuator was the one stuck open. It makes sense since I only loose my primary but secondary is fine(kinda like a super big turbo lag).


So now I am at a point that I know this is the component but has anyone run into sticky turbo control before and what did you do to address it? Please let me know.

ptrhahn

iTrader: (9)

Yes, and it was because too much pressure was being fed to the solonoid. I now have a pressure regulator coming off the pressure tank that keeps it at 10 psi.

ThaiTea

iTrader: (14)

Hmmm I think I may need to do this too but do you think boosting at only 12psi will do this?

Also do you mind sharing a pic and some more detail of this setup?

Speed of light

iTrader: (8)

turbo control (pressure side) solenoid 'E' is a common culprit. It will frequently stick open.

ThaiTea

iTrader: (14)

Now has anybody else experienced this? I am wondering how can I check my solenoid when the problem is very inconsistent!?!