95 SE check engine light came on aftercleaning underneath of truck withhot power washer- no codes displayed and it runs/starts the same- I might have a bulb to remove

 

Before you start pulling a bulb, get yourself a can of electrical contact cleaner. Then -- one at a time pull the connectors apart for your O2 sensors, and flush them out with the contact cleaner. Then snap them back together and try it. When people pressure wash these engines they sometimes force contaminants inside these connectors in the form of oil and coolant residue. This plays hell with the O2 voltage and signal flucuations seen at the computer will throw the CEL on.

regards,

Geoman
www.eurotekapg.com