Well its pretty clear the OP only wants answers that validate the path he had already chosen before even making this thread.
Possessing and smoking marijuana is illegal in all 50 states under federal law, too. But if nobody's checking, nobody's landing in jail. You can mug and rob someone in Times Square in broad daylight and be right back out on the streets that evening, but you can't take off an EGR valve and block it? I doubt if many people that do it are worried much about it. I cannot prove it, but I believe that's why some states exempt a lot of older vehicles from emissions checks and similar since 1) they're a very small percentage of what's out there, and 2) I think they're too lazy or cheap to chase down the people in an '82 Citation in the local trailer park running around without a converter. Along with reducing the emission check lines.
Again, if you know what you're doing, you can rip out a CCC system and live a normal life. Q-jet, Holley, or whatever carb and ignition system you like. The ZZ4 prom only works for Chevy guys. Just a useless paperweight to me. Olds has no performance ECM mods.
I don't condone it, but I'm not stopping anyone if they want to remove the system. But if you do it, just do it right. I will always resist getting sucked into a "I partially removed my CCC system and my car won't run...what do I do?" discussion. I won't be throwing anyone a lifeline for that.
I think 🤔 the best way to do this is to get older intake pre 73 or aftermarket . Same with the carburetor and some headers. Then you just have to figure out how to make it all work. Don’t forget a distributor.
But buying marijuana prohibits a person from owning or possessing any firearms. They effectly lose their 2A rights in all 50 states which of course nobody warns prospective mary jane buyers about. Its not just the Feds that can go after you for emission tampering, your state can go after you too.
I could pop the hood on a bunch of G-bodies that should have an ECM on any given day and find a bunch of law-breakers. Granted, if you do stupid things to get pulled over, then you might get more scrutiny, but even a junkyard LS swap in and of itself is technically illegal in the strict rules of the EPA concerning engine emissions. It might be ok if it's one of those $$$ E-rod kits or something. Not many people shell out the 10K or more for the E-rod kits, though. I guarantee you the majority of LS swaps leave out something needed in the emissions department. For one, most LS engined cars/trucks utilize some sort of a gas tank pressure monitoring/control system, which I'd say 99% of the G-body swappers don't even do. Yet, I've heard of no one going to jail or being fined for having an LS engine swap. For that matter, I've never heard of anyone getting fined or going to jail for taking out their ECM system.
I think this discussion, like many other subjects, tangented way off the mark. The basic question was looking for ways to delete what is there for asthetic purposes. Nothing more. I don't care if it's legal or illegal, or even the reason why. That's on the person doing it. As soon as you do something seemingly innocuous, like putting headers and duals on your CCC G-body, even if you use 2 cats, you technically broke the law anyway. Due to attrition, there isn't the volume of law-breaking G-bodies out there anymore, so perhaps they may not be worth persuing. Concerning a person hell-bent on removing their CCC system, to borrow and twist a quote from "The Terminator": They can't be bargained with, they can't be reasoned with, they don't feel pity, or remorse, or fear. And they absolutely will not stop…EVER, until the CCC system is dead!
That said, it is totally straight on point that the CCC system only can control what's in its wheelhouse. If you don't ever change plugs or air filter, and foul up your O2 sensors or like was mentioned earlier, vacuum leaks and wire connections bad, etc., no ECM will save your engine to magically make it run better. CCC was designed to increase efficiency and reduce emissions of an already choked out, but still in good condition, powerplant with everything working as it should. It still amazes me to this day as to how they figured out a way to make a CCC Quadrajet look almost exactly like the pre-CCC ones externally. Plus, they finally figured it out that computers could actually work on higher horsepower versions as the development continued that concentrated on efficiencies not just on fuel economy and emissions, but engine power as well. And the evolution continues.
As a btw, in my state, currently, it's still a federal and a state crime to possess and use marijuana, and federal statutes trump state anyway when they don't align. I'm not comparing the penalties, just the fact that it's a federal crime in all 50 states just like breaking those PITA EPA rules. So penalty arguments notwithstanding, the main point of it still is, unless someone in law enforcement actually CARES if you rip out your ECM, even if it is illegal, it doesn't matter unless they want to beat you with the legal stick. It's all about the $$. It's easier to make it where if you can't buy it, you may not do it. Control supply, control the outcome. Every good totalitarian governance system will tell you that.
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