spoolage

iTrader: (2)

Primary turbo spools fine - my problem is that the secondary turbo seems to be "stuck" and will not spool up which causes the car to basically produce no power.


The weird part is that if I do a 3rd gear pull from 3k rpms till redline - the secondary turbo seems to become unstuck, and once I get it "unstucK" I have no issues getting full boost (when both turbos are working correctly, they maintain at steady 10)

So what could cause this --- why, once the secondary turbo starts to work, does it work fine, but until I am able to get it spooling up again that it seems to be "stuck" is the best way I can describe it.

dgeesaman

iTrader: (7)

This smells like the infamous sticking turbo control solenoids. It usually happens with the pressure side solenoid.

https://www.rx7club.com/showthread.p...light=solenoid

But it's by no means the only possibility. I'd pick up a spare pressure gauge and tee into each solenoid->actuator line and monitor it. When you reproduce the problem and see the corresponding change in that vacuum line you know you've found the culprit.

Dave

beckrx

iTrader: (18)

Try spraying the charge control actuator with silicone spray. I had a similar problem and discovered that my cca was sticking. Once I sprayed it down with silicone spray and manually moved it back and forth with a long screwdriver multiple times (as well as observing its action with KOKO), my problem was solved. I would try this inexpensive fix first....