Topic: 92 v6 manual truck with idle issues

[junya92toy]

So my truck has been idling very weird lately. It will sometimes idle at the normal 900, then up to 1500 then 900 then 1200. So anywhere from 900-1500. I havent really looked into it yet. Any thoughts? Mass air flow sensor? coolant temp sensor?

[poolfixr]

Try checking the the flexable air tubes between the air cleaner & plenum. If its cracked (sounds like it on bottom side) it will do weird things to idle