Just put in a new throttle body in my Pontic g6 2007 and the idles is too high and not going to normal wait 15mins to relean nothing it's still high when shift gears it jumps and then the idle goes down but I turn it off then turn on idle back high and not going down

Question edited for clarity.

Did you clean it properly both sides, fully disconnect it? You need to do a Throttle Body Re-learn.

Throttle relearn procedure/New battery/Won't Idle or Run

Toyota Nation Forum https://www.toyotanation.com > threads > throttle-rele...
Aug 8, 2019 - Step 2: Press the accelerator pedal ALL THE WAY to the floor and hold it for 40 seconds. Step 3: Release the accelerator pedal ALL THE WAY and count for 35 ...

Calibration or relearning for throttle body - Toyota Nation Forum
Apr 18, 2018
Finally cleaned Throttle Body & MAF Sensor, & Idle Relearn ...
Jan 5, 2021
Help - I forgot how to reset the Throttle Position?
Oct 15, 2019
Throttle Body Failure ' Toyota Nation Forum
Oct 11, 2013
More results from www.toyotanation.com Missing: caldina ‎d4

How To Reset The Throttle Position Sensor In A Toyota

Vehicle Freak https://vehiclefreak.com > how-to-reset-the-throttle-po...
Aug 11, 2023 - Slowly press on the gas pedal, hold for three seconds, and release slowly. Repeat three times. Put the key in Off position and take it out. Wait ... ..

check hoses for vacuum leaks also throttle body may need to be cleaned and or throttle body position sensor can be starting to be faulty or may require cleaning with throttle body --the following links show how to clean a throttle body look up the ones that do it in /on vehicle you dont have to remove it from vehicle
How to Clean throttle body GM 3800 throttle Body Tune Up Cable accelerator... Throttle body cleaning and idle relearn procedure

In theory once the desired idle speed is programmed into the management system, in the absence of such faults as air leaks, sticking idle air control valve and suchlike it should be impossible for the idle speed to be much different from the programmed value because the ECU should continue closing down the amount of air bypassing the throttle butterfly until the idle is around the correct value.

I think you need to go back to basics and double-check the work to ensure everything is as it should be. In the absence of mechanical faults and ignoring the possibility of electronic problems a high idle must be caused by too much air entering the engine, either because the idle air control valve is not closing properly or because the throttle butterfly is not closing fully.

It is worth noting air can enter the intake through leaky diaphragms, split vacuum hoses or faulty pcv systems. It is also worth checking the egr valve if fitted.

The ECM maybe stuck, disconnect the battery and wait 5 mins then reconnect.

Other things that normal cause high rpm at idle:

• PCV hose to throttle body has a leak
• vacuum line to brake has a leak.
• the throttle plate maybe dirty and is open partly
• the IAC is bad. Which is on the throttle body.
• the throttle plate sensor is bad, just unplug it and see if the rpm goes down. If it does, replace the sensor.
• the egr value maybe stuck
• bad front o2 sensor
• bad coolant senor. You should have this replace since the original sensor where plastic tip and crack. The new ones has a brass tip. the transmission and air( IAT) have the same sensor part.

The best way...
start up vehicle, place in park, foot on brake put the vehicle in drive. The process should take 2-3 minutes. Do not operate gas pedal, let the TPS learn base idle. There is nothing esle to do afterward. Shut off vehicle and restart, should be fine.

this sounds normal

That is because the transmission is timed with the throttle position sensor and the idle air control valve on automatic transmissions. If the position sensor starts to fail you will have usually high, low, or erratic throttle and it will act as if the transmission is slipping. Have a mechanic clean your throttle body, replace the gasket, change the IAC motor, and throttle position sensor. Its what they should do to your car anyway for a full tune up but its rare anyone does it anymore. So i always do my own and you definitely feel the difference

The Idle Air Control valve is located on the throttle body. If you follow the intake tube from your air filter all the way back to the intake manifold, where the intake tube connects to is the throttle body. Remove the intake tubing and you can see the throttle body.

There are two sensors on the throttle body and a vacuum line. You'll see two harnesses going to the throttle body, one is the IAC.

However, a quick diagnostic check can be done without touching the throttle body to confirm your problem. If the car has a normal idle when initially started but then rises to a higher idle and stays there BUT then if you were to shut the car off and restart it and it comes back to normal that is the Throttle Position Sensor (TPS). This is also located on the throttle body (the other sensor to the IAC). If it is the IAC it will be high and maybe fluctuate a bit.

It could also be carbon build up on the throttle body, but regardless the cure is the same. Your going to need to clean the throttle body and the idle air control valve (IAC). With a can of throttle body cleaner, (follow instruction on the can) clean the throttle body blade and the IAC passage way in the throttle body. Once the throttle body is cleaned, with the engine off, turn the ignition key to the on position (engine not running) and wait for 30 seconds and then turn if off for 10 seconds and then start it. This should reset the IAC, if it did not work do it again and see if it helps. If not clean out the IAC passage way again. The turning on and off the ignition reset's the IAC and it may still be stuck with carbon build up. Once the engine has started, Note there will be lots of smoke form the tail pipe, that's normal. It's just the left over throttle body cleaner and carbon being burn off, take's not more then 10 min to burn off. Good luck and this should keep you from replacing the IAC. Oh and don't use Carb cleaner, Carb cleaner is to corrosive to the throttle body gasket.

sounds like throttle body sticking.take air cleaner hose off ,get throttle body or carb cleaner sprayand spray the hell out of it ,in and out.if you dont know what athrottle body is,have someone go into the car and step on gas,observe under the hood you will see a cable moving a lever which is connected to the throttle body.good luck rob .