2000 RPM idle

Finally after three weekends of replacing the engine heads, I got he truck back. But it idles extremely high. and seems to fluctuate a lot. I'm thinking bad MAF? Or O2? sensor? Thoughts?

 

Air leak?

 

For others use, which engine does your truck have? It may be important info and might as well bump you for help.

 

Ooo sorry about that. It's a 3.4. HAs the K&N Air filter on it.

I can't rule out air leak, Just have to find where it is leaking from. I had about a little less than half (45ish) gas tank when I drove 60 miles home and nearly ran empty. But I don't smell any excessive fuel for a fuel leak.

 

Someone told me after I cleaned out the butterfly valve. I needed to reset the computer I unplugged the battery for a while (made some food 10mins) reconnected it back in (while I ate another 10mins) before I drove it/cranked it over. Not sure if it did anything, but that's what I did.