It keeps going and going and going

[1slowdsm]

After my tranny install, I took the car for a test ride around the neighborhood. Then I was on my way to get my car wash and was on 65th in 5th gear when I noticed that my car didnt decelerate when I let go of the gas pedal. I went into neutral and my car idled at 3500rpms! so I skipped the wash and drove it to a parking lot, checked things out. Nothing seemed lose, missing or stuck. Then I drive to my parents house shifting like Im on the race track (no lift to shift) and once I get here. I went down hill, stepping on the breaks and in 3rd gear, the car's about to die then I went to do a u-turn and the car is normal for a couple seconds, then it gases and then goes normal. So I take it around the block and it's normal now....so far.

What's wrong? Im stumped, never have I ran into this kinda problem.

[scheides]

Throttle cable got kinked/stuck, or something's loose on the ISC or some other boost/vacuum leak......check it all out!

[wheelhop]

I agree. Do a boost leak test and pay attention to leaks after the throttlebody.

[twack]

I had this happen in my auto, for me it was a cruis control issue

[tpunx99GSX]

I say throttle cable as well.
On another note same thing happened to my buddies N/A honda, It turned out his air filter came apart and there was a piece of it stuck in the throttle body. LOL