08-29-2019 06:45 - edited 08-29-2019 06:48
Unlikely to be load. An engines load at any specific RPM is engine specific. The device would have to have access to the HP charts generated by a dynometer for that engine. Load is not something broadcast on the NMEA network. So if it is load it's just some inaccurate estimate based on God knows what .
Percent engine load is a standard defined parameter of the NMEA 2000 library. It is broadcast on the network by Evinrude products.
08-29-2019 08:03 - edited 08-29-2019 08:12
Never saw it when I monitored the network. If you are referring to PGN 127489 the engine load parameter there is defined as "throttle position".
Thanks four you help guys, I really appreciate it. If it load is actualy the throttle position this could mean the TPS is not calibrated correctly or is not being pushed fully open by the linkage. I like the thougt of having some extra power hidden somewhere in the engine. To know for sure I'll do some testing and report back. I've also purchased a diagnostic cable so I can check the calibration.
Just did some testing on the driveway. Unfortunately the load is not displayed with just the ignition, the engine has to be running.
The load percentage rises with the throttle leaver and not with the rpm. Because the prop wasn't in the water there was no resistance and the maximum RPM was reached at 20% load, so testing it up to 100% on land isn't possible.
I noticed however that the TPS and the air intakes didn't open to their maximum position with the throttle leaver fully down. I'll do some further testing when I'm on the water or when my diagnostic cable comes in. To be continued.