Ok so you are 100% correct. There is no reason to do a one-off PCB just to re-route pins. My hope is to make a plug and play that's affordable so that there's a cheap and "easy" solution to a common problem. Whether that's misguided or not, we'll see.mk e wrote: ↑Sat Jan 02, 2021 3:32 pmSo you've convinced me you don't need a break-out board as what you're doing is really a 1 off install so you've made an incredibly strong case to buy a proteus and wire it in and stop worrying about which features you'll need to delete to use the OEM connector, just cut it of and be done with the problem for good. Hell, you would have had it running and tuned by now just using the time you and I have sent discussing PnP
So on this engine they replace the distributor with the cam sensor which is basically a one "tooth" signal I believe. There's also a "stock" crank signal I plan on using as well. My thought though is that I plan on using this setup on my personal project, but will also try to support the stock setup for those who want something plug-and-play.
Very good advice here. I'm basically trying to do this in the constraints of the stock 60 pin connector, and I definitely see your point. The stock 60 pins is definitely not enough for a great design for every feature for every car, but that's not my goal here. I know due to the constraints of the connector this puts this product squarely at more of an entry level system that would require upgraded later. That goes with even my goals. My friend who owns the car is still learning about cars and has never tackled any tuning or custom setups at all, so this will be a great tool and allow him to learn and upgrade for some time without breaking the bank.
I completely agree. If this car were actually my project I would be going a different route, but since I can kill two birds with one stone and help more than just one person out (hopefully) with this, that's what I'll do!mk e wrote: ↑Sat Jan 02, 2021 3:32 pmAlso old cars just don't have everything new ones do so you always endup adding a bit of wiring....and the sooner you just get on with it the easier you're life becomes. My project car started life fuel injected but an early 80's implementation so its got...100? 120? new wires. It just is what it is.
Wow! that's a lot of analog inputs! We were actually just talking about that issue and maybe adding an external ADC sometime in the future.mk e wrote: ↑Sat Jan 02, 2021 3:32 pmOn the pin count front, I'm using ..36? just for analog inputs. They go fast and as I said, I've never hear anyone complain about having too many. When I do car for other this is always one of the first questions, are we leaving room for future improvements or is it finished? If its for me the answer is I'm leaving room for future improvement because nothing is ever DONE done.....I sent a CAN line and 1/2 dozen other unused wire to the front, and use 2 plus I extended another 4 OEM wires back to the ECU before I ever "finished" the 1st round of wiring. Project cars are toys...toys are for playing with, plan accordingly and stop trying to remove pins you'll miss later. I don't have a proteus because I'd need 2 or 3 to get enough pins to be happy
Again, I really don't want you to think that I don't value your advice and I'm just blatantly disregarding it for my own hubris. I just think that I may have miscommunicated my goals with this project. And yes, it may turn out to be a complete waste of time and it helps no-one (I hope that's not the case), but at very least I'll have learned way more than just buying one.
For sure, I'll be starting my own project soon on other cars and buying a Proteus and doing this more of your way. This one is just different goals is all