It can mean many many things. Have the ECU scanned with an OBD2 scan tool. This will retrieve the code that has been set.
Yes, water can cause a misfire, which will cause the check engine light to flash.
If your check engine light is flashing , an engine cylinder misfire has been detected
Jumping the pin connector on the ECU will allow the check engine light to flash on the dash console. The check engine light will flash repeatedly and show codes.
If the check engine light is flashing it indicates that a cylinder misfire has been detected.
A flashing check engine light is an indication of a severe engine misfire.
If a check engine light is flashing that means an engine cylinder misfire has been detected
An engine cylinder misfire has been detected
If your check engine light is flashing that means an engine cylinder misfire has been detected
A flashing check engine light is an indication of a misfire.
A low battery can cause the electrical system to flash check engine lights
When a check engine light appears on a 1992 Honda Prelude dashboard it means the ECU is get an abnormal reading on one of the automobiles functions. Use a diagnostic tool to flash the ECU and find the problems associated the car. The flash will also turn off the check engine light.
If the check engine light is flashing at 1 second intervals , an engine cylinder misfire has been detected