MSPNP Intermittently going 'offline' while tuning
In the past year I’ve purchased an MSPNP2_9003 Megasquirt ECU for use in my 1991 Miata. While I am a huge fan of its functionality and performance, there is one aspect that is beyond infuriating to me.
Since the installation of the ECU (of which I followed the instructions to the letter), I have been having issues with the connection to my lap top failing and the connection to the MSPNP ECU going “offline.” I have checked and rechecked my connections (mounting of the ECU, cable connections, etc) and continue to have the same problem. However, the issue only occurs when the engine is under heavy load- which you can imagine is EXTREMELY frustrating because one is typically trying to log data and/or use the tuning software. Having the connection fail in the middle of a session, time after time and having to lose the information and restarting the program each time is getting very tiring. I have gone as far as to test my alternator and battery voltage and have also cleaned up grounds and tried a new battery; all to no avail. Note that this has happened both on the road, as well as on the dyno- where the ‘road’ is smooth and there is nothing to physically jostle around the ECU or the connections. Has anyone else had this problem? |
How do you connect to the ECU ?
Serial cable ? RS232-to-USB ? Extenders ? I use a Serial cable with a RS232-to-USB adapter, when I tried to use a usb extender I got offline a few times, when I took the extender out, I had np. |
what version tunerstudio are you using? I know earlier this year, I think around summer time, they had a few versions that had problems and would disconnect, however they fixed it in a few patches really quick. The newest version is fine
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Sorry for the delay- insane weekend.
Originally Posted by elior77
(Post 955096)
How do you connect to the ECU ?
Serial cable ? RS232-to-USB ? Extenders ? I use a Serial cable with a RS232-to-USB adapter, when I tried to use a usb extender I got offline a few times, when I took the extender out, I had np.
Originally Posted by bmxfuel007
(Post 955126)
what version tunerstudio are you using? I know earlier this year, I think around summer time, they had a few versions that had problems and would disconnect, however they fixed it in a few patches really quick. The newest version is fine
I made a similar thread on miata.net and they've mentioned that the cable is likely the culprit, too. However, I'll search for the plug type that Elior mentioned as it makes sense, too- and is one less cable in the car. Thanks for the help so far! |
v2.0.6 is the latest so you're good on that
I've had problems with losing connection before with extended usb cables. Using a serial cable to an adapter that hooked directly to my laptop always worked perfectly. Try a known working cable just in case if you are able to find one |
b2.0.8 is latest. HA
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:P 2.0.6 is the latest release on their site not in beta
Originally Posted by Braineack
(Post 955611)
b2.0.8 is latest. HA
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