High Idle

[shellenel]

So my 2002 sentra is idleing at about 2k in park and sometimes when I'm waiting at a light it will rev up and down and sometimes die. Also when I start to drive again it will putter and take a while to actually drive again. My friend replaced the throttle position sensor for me in October and it mostly fixed the problem but then about a month ago it started doing it again so I took it to a shop and they had to replace the tps again. Well on my way home the check engine light came back on and I was having the same issue took it back to the shop and the replaced it again. But still the same issue. If I unplug the tps gray plug connected to the tps it drives and acts perfect. So my question is what's wrong with my car? Could it be the plugs?

[PapaSmurf2k3]

Yup!!! Sounds like it could definitely be some corrosion in the plug or wiring. If you shake the connector/wire area with the TPS plugged in, does it idle up and down/stutter?

You might have some re-wiring to do
Welcome to NICO!

[SoundEfx]

What was the code for?
Also, the cam and crank sensors tend to go bad on these cars, especially if you still have the old plastic ones.

Also, every time you change any thing on the car, try to reset the ecu or perform an idle relearn.