My 91 4Runner 125k oil pressure gauge just quit no reading at all.This concerned me.This happened after I changed the oil and pressure washed the engine compartment.The temp gauge is normal and no warning lights have come on.I checked to see if I some how unplugged it during the oil change but it was still plugged in.Not sure where to begin,my yota is still running fine and there is oil circulation.Is there a sensor I may have ruined while cleaning the engine? if so where would I find it?? Thanks for any kicks in the right direction

 

I would double check the connection to the sending unit perhaps it is still attached but not getting a good connection.

 

Thanks I'll do that.

 

right on