Hello, ecu gurus.

I'm peeking the ecu tune dungeon.
I just studied that Load is one of the most important items to tune a car, and knew that Load expresses the size of load for an engine.

But I'd like to know about Load more correctly. Help me, please.

1. How(or from what) a Load is calculated? (I heard that a Load is able to be calculated by a numerical formula as MAF/rpm.)

2. What is the difference among Load, Load 2Bytes, Absolute Load, and Accelerate Load? Many maps in Fuel and Timing categories have an Load axis, and some maps in Boost category have Load type values. All types of Load values and types of axis are just 'Load'?

Thank you for your time.

 

I wrote a script for my PCMSCAN.

First, my formula was just (SAE.MAF / SAE.RPM), but the values seemed too little.
For it seemed necessary to multiply a fixed number, I did try and error and I found out the formula ((SAE.MAF / SAE.RPM) * 100000.0) is proportional to SAE.LOAD_ABS, but still not have same value.

I found out that (MAF/RPM) is proportional to the SAE.LOAD_ABS( Absolute Load Value ). I still don't know what the SAE.LOAD_PCT( Load Calculated ). I have no informations about LOAD_PCT.

And, I want to know whether the 'Load' axises of the Evo X's maps (i.e. Fuel maps, Evap maps, Knock Filter maps, and so on) means LOAD_ABS or LOAD_PCT.

Anyone helps me?

 

Sorry, I don't know either but I think it's a great question! Subscribed.