I'm assuming you have a '96 w/OBD.
PO300 indicates a "random/multiple cylinder misfire detected". Is that the only code you have? No PO301 - PO308 codes? Those identify the particular cylinder (if a particular cylinder is detected).
If you don't have additional codes, then you may be on the way to having a failure in the Optispark system.
Have you observed any performance issues with the car?
Steven
PO300 indicates a "random/multiple cylinder misfire detected". Is that the only code you have? No PO301 - PO308 codes? Those identify the particular cylinder (if a particular cylinder is detected).
If you don't have additional codes, then you may be on the way to having a failure in the Optispark system.
Have you observed any performance issues with the car?
Steven