Hi, I have a 92 buick regal with 3.8L with over 200km on it. Just yesterday the car started to give me trouble, I started the car up and move to a different parking spot and the car shut off on its on, and I tried to start it a few times but no go, after 10 mins it started fine. now today I took a run to the store and almost back home the service engine light came on and engine would rev high, kept at around 2500 rpms, the service light is on but it blinks nonstop. and now as soon as i start the car hit idles at
2500 rpms her usually idle is 1500, I chacked to see if anything is blocking the peddle or cables on the engine, what do you think could be the problem, can't get it to the garage until the weekend.