Butters "Winter Upgrades". . Starting a Little Early

Dantra said
The OS stuff is kind of a mystery to me. I'm not sure if some of the paths still exist or not. Mine was wiped clean, then flashed with Sublimes proprietary flash. What I took away from the conversation with Aether was that different OS has different logic, some missing, flags etc. and that the Mopar Crate is lacking some of the fine tune abilities. I just have to feel that there is some truth to that, because all of the stock base files from a 2018 were copied in and it still wouldn't calibrate correctly. Reality is, it's all a guess with some of this stuff.. Russell Drake was telling me that not one Chrysler engineer could even answer all of the ecm questions, due to the complexity of it. I'd be curious to see someone ask their gpt the same question that I did... Same results or was mine picking up on my issues and questions that I had asked previously?

I have a few crate ECMs.. one in hoopty and one on the shelf. The one on the shelf is P5160105 (5.7). Under the label should be OS info. Crates don't have a VIN like stock ones. I kinda even wonder if the OS is actually there there? Is it a stock one that just flashed to an RV and then a label put over it. Hmm. It'll show in HPT tho.

My gut says that when the factory creates a crate PCM, they are able to flash the OS as well as the tables, while (just a guess) nobody else touches the OS. Much like the above issue with SRV, seems like if the OS and logic could be changed on the PCM, a 6.4 flashed onto a 5.7 PCM would fix the SRV issue.

At the same time, it confuses me that adding missing tables doesn't help. That makes me think the OS is modified when cloning. Either that or the different OS's use different tables for the same things? Ugh, I don't know.

Dantra said
I looked up my part # for the one on the shelf and in the description, its actually different than I believed... This makes it sound like it adapts.

P5160105 Description from Summit..
"Mopar Performance Stage 1 engine control modules work with your power adders to maximize your Mopar's performance! Designed for race-only applications, these Stage 1 engine controllers have modified spark and fuel tables that kick in when mods like headers, cat-back exhausts, aftermarket cams, and cold air intake systems are used. The computer senses the additional airflow and will compensate with appropriate fuel and spark for the best performance possible. Make power adders perform with Mopar Performance Stage 1 engine control modules."

That sounds like something an AI wrote. :D

As I understand it, the O2 sensor can be used by the PCM to tweak the tune. But that doesn't mean it has the range to adjust for a larger cam or headers. The self learning capability of systems like MS or the Terminator X is a completely different deal. But if someone unfamiliar with the workings of a factory PCM sees that it will adjust the mixture, they might think it can tune on the fly. And the idea that it "kicks in" tables when headers or a cam is added? Sounds like someone is smoking something to me.

BTW, technically the PCM doesn't sense airflow at all, it's a speed density system that calculated airflow. You could kind of say that by reading the O2 sensors as lean, it is "sensing" more airflow, but to me that is kind of like saying "Blake and Ryan said....".