not the check engine light but the check gauge light is flashing, is this due to my little system. finally put my car on the road after two years and this is the first time I ever seen this light go on and off.
this is what the FSM states that it means
The "Check Gage" warning lamp will illuminate to warn the driver to check the oil pressure gauge, engine coolant temperature gauge and the voltmeter. When lit, the "Check Gage" lamp indicates that one of these gauges is operating in an abnormal range.