Hey guys, so I recently got done with some major vacuum line, wiring and injector works in hopes of improving my boost. Now my primary comes on strong and I', in the middle of troubleshooting the secondary. I won't pester you guys with general diagnostics questions since I know the topic is very well researched.
My question is I suppose, The wastegate control solenoid was open at idle. I found out by switching the cables and I could hear it click and to confirm I blew through it. I didn't check the turbo precontrol solenoid yet but is this normal? I was going through the FSM Section F-84
Now according to the diagram it is supposed to be closed under light load.

 

That solenoid duty controls the positive air flow from the waste gate actuator. When under load and generating boost, the solenoid rapidly flicks on and off to change the speed in which the positive airflow leaves the waste gate actuator. Short answer. Yes you should be able to blow through it :P light load is not idle.

Matt

 

So after I wrote this I went to the car and unplugged both the wastegate control and turbo precontrol solenoids. I then connected each plug to a spare set of solenoids.

One of the plugs causes the solenoid to flick on/off rapidly when I applied air pressure to it then closed under vacuum the second connector simply leaves the solenoid completely open. No on/off action simply on regardless of vacuum or pressure. It doesn't help me that the white dot on the connector has worn off and I have no idea which is which.... and to confuse me the turbo control solenoid (Under intake manifold) uses the same type connector and I can distinguish them.

I suppose there is not much else but to go over the vacuum system again.

Now at WOT in third gear I get up to 14psi (I am at altitude, Denver) then right at 4500 rpm you can clearly see the gauge immediately drop to 5psi
Perhaps over the weekend I will tear her all apart again and recheck everything