Ya tell me about it!! Looks like we have the same issue, it's making me hate my 4runner right now. I ordered new ngk wires and the trd O style gasket for the throttle body, should be here Saturday so I'll post my results then.
MAF sensor cleaner is made to evaporate quickly. No canned air necessary...
right so, flooding the MAF with the stuff won't allow it to evaporate properly and leaves a residue, like i said in the my previous post short little squirts with time to dry in-between, even if it's a fast drying fluid if you go crazy with it , it will leave behind a residue.
Correct. With some common sense and following the directions on the can, it will evaporate quickly.