I'm using a DC2 Integra B20 VTEC and have been using my S300 for about 9 months now.
My problem started with the CEL at first. Brought my car to my Hondata tuner. When connected to the S300 manager, it couldn't do anything. Couldn't datalog, upload, download or anything.
Other issues were the red LED was on as well instead of the usual green LED. I couldn't rev past 3000rpm.
When tried another Hondata s300 on my car with the same ECU, everything was fine. Then tried my S300 on a different ECU, the problem is the same. My tuner is telling me my S300 is faulty and asked me to change to a new S300.
My question is this a common issue and how to troubleshoot besides asking me to get a new S300. Is it possible to get it repaired?
S300 not working
Re: S300 not working
What is the s300 serial number that is on the board inside the ECU? From Help, About, what version of software are you using?