At my tune appt., Justin
@BlackBearPerf told me to clean my throttle body before Thanksgiving. He was right (obviously) with TPS 12.9% at idle.
Disconnected battery and TB harness. Removed TB and used an old coolant sensor as a cork for the crossover.... Worked perfectly.
Sprayed and cleaned the intake as best I could with CRC throttle body /Intake cleaner. Used a sock and a pipe. It wasn't shining, but it was noticeably cleaner with a flashlight....
You filthy little thing, you....
I decided I would ignore all the "don't move it by hand" talk. I was CAREFUL. I pushed it closed, mostly. I took my time. I used a toothbrush with frayed bristles to get in between the body and the plate when in idle position, pushed it closed, and wiped with a microfiber cloth. Repeat x 14,000. I opened it a little just a few times gently. All cleaned up....
Reinstalled. Hooked up the scanner to watch for codes, RPM, and TPS. Decided to do the "relearn" right off the bat. Fired her up, seemed petty good. 3:00 on, 0:60 off. Repeated this a few times. No CEL. By the end, she has just about settled at a solid 600 RPM. TPS at 2.7%. A few minor fluctuations here and there, a little slow back to idle after a throttle burst. I'm sure a little driving will finish it off. Can't complain with a 10%+ decrease in TPS and no 2000 RPM idle. Happy camper over here.