Modern Vespa

The engine light on my 2019 300gts frequently comes on and then later on turns itself off, and is pretty annoying. Sometimes I believe it is due to kick back of the engine during start up, but then other times it just comes on for no particular reason.
Since it is a 2019, there is no way for me to get a fault code. I was wondering if somewhere there is a listing of what faults will turn on the engine light on a 2019 GTS? At least that list would give me a starting point for trouble shooting future problems.

TIA

You can check for a failing voltage regulator if you have a multi-meter. Also check your battery terminals are tight.

Check coolant level.

Thanks for the replies. I completed a 30K miles service a couple of weeks ago. All fluids are new. Running voltage is @13.2 volts. The bike runs like new, but the light problem continues. It has been happening for about 6 months now.

Checked voltage when you rev it up?

14.4 when revved up

Ok. Well, check the connections to the fuel injector and the grounding wire. Maybe swap out the spark plug and replace the battery if it's a few years old.

The spark plug and battery are new. I will check the ground wires

Great photo Randyjaco. The only time I've seen my engine light was during a long ride on a scorching day at a few stoplights. If your coolant level is correct, all I can do is wish you the best.

When my check engine light came on, I read a bunch of threads and loosened my gas cap for a day and it went away......any time it has happened since that is what i did and it seems to do the trick

My engine light on my 2006 Vespa GTS 250ie has been on for at least 15 years.

*Yawn*

It's just letting you know that it's there for you.

Maybe it's an inverse type of indicator - if the light goes out, then you have a problem...

I got along for years without a check engine light with few issues. Mine now just gives me something to worry about

I still remember the day it first came on. I was riding at 70 MPH for about two hours on an interstate highway. When I got off and was decelerating down the off-ramp it came on. And stayed on. I was worried and took the scoot to the Vespa dealer. No codes. Nothing wrong. So the tech told me to not worry.

So I didn't. A fine lesson. My TPMS light on my Honda Fit has now been on for a couple years. I got tired of replacing those sensors. So I now use a high tech device to monitor tire pressure. A three dollar tire guage...

Lucky me!

Worry sucks.

I just keep the oil and coolant right. Filters clean. And check the tire pressures and such and just ride until it stops. And the stops have been simple things -- dead battery, dead fuel pump, loose spark plug cap.

I used to worry about valve checks but each time I suggested a check to the Vespa tech he would ask how it is running. If it ran ok he said not to worry about it. I recently had the first valve check. At 44K miles. And they were fine. Needed no adjustment.

I've adopted as much as possible Alfred E. Neuman's philosophy --- "What? Me Worry?"

It's particularly helpful as my 401K balance has been tanking lately...

apparently the evap system can cause this in particularly if you overfill the tank