It has to do with emitions. Your sensor is either bad or one or you plugs are bad. Change your plugs first then disconnect your negative cable from your battery for at least 20 seconds to reset your trouble lights. If that does not clear up the problem change your catilitic converter sensors and clear your trouble lights again. try replace the vehicle speed sensor in the transmission, that should take care of the problem.
It is important to know why a Check engine light blinks. In many cars, when it blinks so many times, it is indicating a code, which is indicating the problem number for the specific car.
get it checked, because if the ligt blinks, something is wrong.
you should check your engine...like now...
cycle the key three times and count the blinks of the check engine light
If the check engine light is blinking that means an engine cylinder misfire has been detected
A blinking check engine light indicates an engine cylinder misfire has been detected
get a haynes manual at a library
A flashing check engine light is an indication of a misfire. Immediate catalytic converter damage is possible.
In my kia Sephia, the check engine light will go on, then when ignored it will eventually turn off. Then a day later it's back on. Shortly after that it starts to blink. usually the blinking means whatever the problem was is now no longer going to work. It's happened to me multiple times. It blinks and then 10 minutes later I'm on the side of the road waiting to get the piece of sh1t! towed!
That is the check engine light. It blinks under a severe misfire.
have vehicle scanned to determine the problem
Unplug your battery for a half hour.