intake pipe spark!, has anyones air intake done this.... Options

[duga10]

yesterday i uninstalled my pod filter to clean it, and i allso wiped inside the intake pipe when suddenly i hear a very small "buzzing" sound come from inide the intake pipe, then a blue spark went off!!

i think it came from the little sensor thats installed in the side of the intake pipe?
but im not sure,

does anyone know what this is?


appreciate any info.

[duga10]

the car has been running fine,

ive been thinking that it makes a spark to get rid of dirt or vapour that may enter the intake pipe, but that idea is just ridiculous (if toyota intended it to actually do something like that!)

i mean it might make the pod filter catch on fire or it may warm up the air entering the engine (which doesnt do any good)