@JD7902 something weird happening, just saw your last post but seems to have disappeared (deleted)_7.50pm.
Copied content from the email notification:
"Hi bidja Ive just installed the needle valve to the set up. Ive set the valve to rest on the stop screw on idle. I now been doing power runs up hills in 3rd and the car seems to be limping out at around 3000 rpm but would return back on the power when releasing the throttle and getting on it again. It seems to do it at whatever psi I set the controller to had it at 15 psi it did it, also down to 11 psi would do it also. is this normal? if not any ideas to fix it? I have a DI motor"
Case of Limp for sure. MAF voltage must exceeding the time threshold allowed by the ECU. Normally u can reduce the boost and this does fix the issue but if it is occurring down to a max boost level 11psi, wonder if the MAF sensor is faulty.
Try connecting the vacuum hose that is going to the Boost Controller, directly to the turbo VNT actuator (bypassing boost controller and needle valve) and go for a gentle drive. Note: For safety sake do not boost higher than 15psi.
Guess u are using a scan tool, any codes reported (record them) and delete if any before test run.
I recall u saying that before fitting the needle valve and when using only the HPD boost controller u were running max boost 11 psi, wonder if something was wrong when u bought the DI.
Take it for run with vac hose connected direct to actuator and let us know result _ but take it easy.
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