2012 Civic starts then stops three times

Question

Hello, I have had a remote start on my 2012 Honda Civic for 5+ years. It has quit working. It is a EVO-ALL and CrimeStopper RS00-G5. From following the troubleshooting I think it has to do with the tach signal but not sure what to check. The car will start for about 3 seconds then shut off. It does this three times and then nothing. While it is running the starter is engaged the entire time.