My car starts up, idles at around 1500, and starts to drop. As it does this, my boost gauge goes from around -20 psi to -12. As it does this, the engine bogs. The engine then starts revving higher, which brings the boost back down to vacuum. If I apply the throttle at all, the engine bogs, psi goes towards 0, and engine dies.
After the engine dies, I can hear a whine coming from it sounds like inside the fire wall, as well as the sound of a processor working (the common computer sound). It does this until I turn off the key.
This problem started with a CEL, with a flashing cruise. I stupidly ignored the problem, then a couple days later, my car started bogging on the freeway. It would only rev to about 3k, and made no power. I had to pull over and get it towed to post, where it now sits. Even while idling, the exhaust has an irregular rhythmn. I'm going to do a pressure test later today, but any suggestions?