Ok I am having a pretty nasty problem with my Bonne. This started sometime last night when I went to pick up my parents at the airport. The problem is that I get a SES light usually when I let go of the gas and when its around 2-3k RPM'*. When I get goin above 3k the light goes off and all seems fine. I went home today and used a can of Engine Brite or whatever its called and covered up everything vital really really good with plastic bags and when I started the car the engine revved slowly up to 3k and stayed there in Park. I got a little worried as that problem wasnt there before I cleaned the engine. Bigger problems after I started driving.... In drive everything is fine but when Im coming to a stop I can tell the car wants to keep going because its slightly harder to brake and when Im idling at a light the car wants to launch itself. Weird thing is after I let go of the brake and the car *slightly* launches itself, I start accelerating and it seems sorta slow. There isnt as much torque after 2k rpms as there is when I let go of the brake. Im assuming many of you have had this very same problem and Im curious as to what it might be. I dont think its major but what comes to my mind is a vacuum leak of some sort. Am I right? Im taking it in for an oil change and O2 sensor replacement on Thursday so I decided I would see what the code was and to probably fix it since I get paid Friday. Hopefully its nothing major. Thanks guys and sorry if my word usage and sentence structure sucks.
1993 Bonneville SE @ 170k Miles
Spectre Cold Air Intake w/ K&N
180 Degree Thermostat