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Does anyone have a detailed documentation of how the emission's logic work?
Things like "under what conditions are the solenoids connected to the Air Control Valve (ACV) are actuated (on and off)"?
all the tests in the FSM are performed under normal operating conditions, it may not explain extensively the function of every thing but it does tell you if the ACV components are working as designed. it gives you operating perameters for each function, so really it explains this without having to write a book about it, because one already has.
I naturally have the FSM, and I've read it. I'm trying to reverse engineer the entire logic so that it can be programmed in an aftermarket ECU.
If you want to contribute to the necessary documentation, you're welcome to. If you intent to say "check the FSM", save your self the time and the trouble.
What you're is actually documented in the training manual. It's a very fascinating document that I don't think most people have read - it basically goes through the underlying logic for many parts, including the ACV:
@notanymore you pointed me to the workshop manual, which is good for the testing, but not the right place. Like I said, don't waste your time if you don't actually want to assist. You really only came here to say "who cares? it's there in the FSM if you read it...somewhere". Where? Nowhere where you pointed me to give the rpm where solenoids get actuated, under what conditions they don't, etc. So unhelpful and arrogant and still have the gall of claiming credit where none is deserved! Go make better use of your time, let me have a better use of mine.
@WondrousBread That's amazing! I'm going through the training manual, and it has everything I wanted to replicate in the ECU. Even other things like Accelerated warming and other goodies, with all the curves. You're absolutely right that I didn't give it the attention it deserved. I'm afraid I gave too much attention to the workshop manual during my studies. I'm going through the entire thing. Thank you for taking your time to point me to the right resource.
The T2 and NA get the air to go to the same places. If you actually get into the details the T2 and NA valves work differently. The NA defaults to Venting and uses vacuum to switch the actuators. The T2 and FD use vacuum for one of them and pressure for the other, the T2 gets pressure from the air pump i think.
This is all very good information @arghx and @j9fd3s . I appreciate the contributions.
Very useful to know that there is a thread on the FD, because I'd very much like to make the software compatible with the FD emissions system. Also great to know discrepancies in who get pressure or vacuum from where to actuate the valves. Indeed, makes sense that the NA and T2 are different, otherwise, why make a different ACVs?
