Modern Vespa

Hi Folks - 2018 Vespa 300 GTS Super with 1K miles. Ran it the other day and noticed the engine trouble light on and stayed on. Came home checked coolant level - it was fine. The day was hot 95+F in Texas but no way that I know to check the temp.

I just checked the battery voltage and while the engine is off, the voltage is 12.6V. When running on the stand and reving, it tops out at 14.9 so I don't think the Voltage Regulator is bad.

Now, crazy as it seems, the engine trouble light is out.

Do I just ride with the Vespa Gods in my favor or is there any other troubleshooting to be done if the light stays out?

Is there the equivalent of a diagnostic test connection that gives error codes like a car?

Any help from all y'all smart guys would be greatly appreciated.

We have two 2018 Gts. We occasionally get the trouble light but no other problems. We just ignore it as long as the bike sounds fine. We are in Arkansas and high heat with high humidity is nearly a daily occurrence.

We did remove the gas tank surge tank problem. It's a common problem listed endlessly on this site along with the bypass. Since we have done this we haven't seen the trouble light again.

GUIDE: How to read Engine Fault Codes (OBD/OBD2)

Also check your oil and recalibrate your asr

Yes.