15% throttle issue

[deejayS13]

Hope someone can tell me wth is wrong with my car! Started my car up today and I let it warm up...noticed that my avc-r was reading that my throttle was at 15% instead of 0% when I let off the gas. Turned off the car, started up again, same problem. Unplugged the tps, avc-r reads 100% throttle and the car is still revving like its at 15% throttle. Checked all the bolts and wires on the throttle body...everything seems allright, no gunk in the plug or anything. And no my floormat isn't resting on my gas pedal...haha. Is my throttle body going bad? TPS going bad? Am I an idiot? Somebody tell me!!!!!

[robbbby]

Did you try adjusting the screw on the throttle body?

[deejayS13]

So last night I decided to wait for the sun to come up before playing with anything...sun comes up, and the problem is gone!!! Throttle back to 0% as normal. haha I don't have a clue. Maybe the sun chased the Nissan Gremlin away

Any ideas on what it could have been?