Did a tuneup and now engine barely wants to shutoff

So my Prius has 336k(km)
I decided to change the spark plugs, serpentine belt and air filter.

while I was down there I also cleaned out the throttle body and maf.

now it feels like the engine barely wants to shut off anymore. Before the tune up it would cold start idle for a few minutes and turn off.

now I can go on a relatively long drive and come to a stop and engine keeps running for quite some time before turning off.

temperatures outside has no changed.

No check engine codes either.

 

Fixed the problem wow!

drove around for city for around 100km and now it’s back to normal