What causes the check engine light and the srs light to turn on on a 97 Honda prelude took it to a specialist and got the egr valves cleaned still turned on after a few hours of driving it.?

sounds like a problem in the ground or the main monitoring ecu for the system. your vehicle has the obd2 tester, have them run it and see if it give you a direction to go. the srs is important to work. that is for the air bags. the check engine light is usually a bad oxygen sensor. hope it helps. duboff