Check engine light help!
Earlyier the check engine light came on while driving, i turned it off then back on, and the light was off, then came on again a while later. i noticed that when the light is on, and im idling in gear, sometimes the pressure guage bounces down thern back to normal. Could this be the EGR valve? I cleaned out my manifold a little and noticed that the inside the manifold where the EGR valve connects was completly clogged. (I cleaned it out of course) But if i blow in one of the holes there isnt any air flow.
1993 Thunderbird LX, Stroked 4.2L Complete Cold Air Intake, AOD w/stage 2 shift kit(soon to be 5speed)