Your "CEL" or MIL (Malfunction Indicator Lamp) is functioning normally. If after inserting "paper clip" you do not get any blinks, that means the ECU has no codes for you. Recommend checking the basics, i.e. spark @ the plugs, signal pulse @ the negative side of the coil, fuel @ the rail, etc. Replacing parts at random without doing a proper diagnososis can get real expinsive......................