Does anyone know the difference between Calculated Load and Calculated engine load? I'm using AutoEngineuity with the Ford pack on my 05 Excursion V10. When looking at Enhanced Powertrain options it provides "Calculated Engine Load" which at idle is running about 16%. If I view the Generic Powertrain data it provides "Calculated Load" which is reading 50% at idle. I'm assuming the Generic Power Train functions are basic OBDII readings and Enhanced Powertrain is Ford specific. Any help interpreting this is greatly appreciated.

I'm trying to diagnose a slightly rough idle and detonation under low RPM load as well as WOT. If the PCM is really seeing a load of 50% at idle I suspect a plugged Cat. As regular maintenance I recently replaced plugs, boots, cleaned MAF, verified PCV valve working properly (waiting for replacement) with no change. All O2 upstream readings are identical and in proper range, MAF readings look to be in the correct range. I do have a strange downstream O2 fuel trim reading but I'm wondering if that's due to it not being used by the PCM for FT. The line voltage appears to be in proper range. I've searched but haven't found any vacuum leaks either.

I'm trying to avoid just throwing parts at it as O2 and MAF sensors as well as a new Cat are quite expensive.

 

Under live data(warmed up Idling)my 05' V10 Excursion shows as 51% calculated engine load and "not available" for the downstream 02 sensors. I realize that these trucks are not quite OBD2 compliant so it may be the reason we get some of these readings. Mine idles fine, runs fine, pulls hard, and sucks gas. I'm personally not going to worry about it unless the truck starts running like crap. Maybe someone with more experience will step in here and let us know.

I used an Innova 3160d that I just acquired. Maybe as I become more familiar with it will help. I also need to check for any update downloads.

 

Thanks for the comparison that's very helpful. I'm hoping to disconnect the cat this week and see if it fixes the problems and lowers the calculated load. Will be sure to let you know.

If anyone else has thoughts please advise.

 

Thanks, yes, keep us posted as to your results...

 

Just wondering if anyone else has any data on calculated load vs calculated engine load on their V10