Cool 2000 Dodge Neon Check Engine Light Flashing Ideas. I'm sure the 302 code will come back on, in a few days. Web if so, turn the ignition key from off to one repeating 3 times and ending with the key on (don’t move the key to the start position) and watch the check engine light(cel) for a code.

Web my 2000 dodge neon had the check engine light go on last night. A flashing service engine soon light is telling you that something. Therefore, another problem may exist.