If you have resolved the problem that caused the light to come on then try disconnecting the battery for a couple minute then reattach it.
That is the check engine light.
See link below for a complete list of trouble codes.
check engine light on,getting poor gas mileage on 1996 Plymouth neon
You will need to get the cause of the check engine light repaired.
With a scan tool.
High idle, misfire, check engine light,High idle, misfire, check engine light,
The overhead light in the Neon could be stick on for several reasons. Check the door switches and light switch for failure. If the light uses an off timer, check the light relay to see if its stuck.
Have vehicle scanned to determine problemv and/or clear codes
The check engine light stays on when the computer detects an emissions related failure.
There are pages and pages and items that can cause a check engine light. You need to have it checked for codes with a scan tool. After repair light can be shut off with scan tool.
Most definately. Tighten the cap and after a few driving cycles, the light will go off if that was the culprit.
yes, ecm fuse and or instr. cluster fuse