High idle causing problems...
My idle has always been a bit high (1000 - 1300 RPM). But the last couple days it has gotten progessivly higher.
Yesterday while driving I noticed that I could let my foot off the gas and the car would maintain speed almost as if cruise was on. I looked down at the gauges and noticed my RPM'* (with foot off the gas) were hovering around 2K +/-. At the same time my boost gauge was reading around -5 PSI (5 psi too high for no throttle).
This morning on my way to work I noticed that if I let off the brake, while at a stop, the car would slowly start to accelerate (say 10 mph in the first 20 seconds). It wasn't just the fact that the car started move, but rather it was really slowly accelerating, and not just torque rolling. When I got to work I did my badge and the gate thingie, and then proceeded to go up a parking ramp. While going up the ramp, with my foot off the gas, I maintained 10 mph. This ramp was steep enough where I should have rolled to a stop quickly. Once I parked the car the idle climbed to about 1800 rpm. I tapped the gas to see if I could step it down. It just went up to about 2k rpm, so I did it again. Then it went up to about 2200 rpm. At that point I just shut the car off and went inside.
Other things I have noticed...
While driving yesterday I would let off the gas and the boost gauge would actually go from -7 PSI while lightly on the gas to about -5 psi once I pulled my foot off. about 20-30 seconds later it might drop back down to -10.
The car usually starts at the expected 1k rpm range. Only after I have been throttleing up the engine (such as driving) has this occured.
My thoughts are either I have a bad sensor somewhere or I may have a stuck throttle cable. Who knows, maybe even something with my boost is causing this (holding boost vs dumping it)? Any ideas where to start???????