Originally posted by 2mAn
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If you can get a hold of a cheap one, sure, but I agree that just decreasing fuel pressure would be a more direct way to lean out. Or just don't use quite as large as injectors as I did.
I think the biggest help I had with the stock ECU, was the wideband O2 sensor. Absolutely worth it. I don't think I would have passed smog without it the second time around. I was rolling the dice trying it for the first time. For purposes of smog, it will trim your AFRs to be nearly perfect even with the stock ECU. Of course, ideally it would be perfect without needing the O2 trim. To do that you need a megasquirt, lol.
With my 2.8 build, if I were to do it again, I would..
-First just get the motor started! Try to use components that are known and working.
-Wideband O2. Innovate LC-2. I had mine set up so analog out 1 was sending narrowband signals to the ECU and analog out 2 was sending signals to a gauge I kept in the glovebox. I would recommend both. PM me if you need help setting that up. It was sweet using the stock plug for the wiring. Makes it easy if you ever need to go back.
-Then, you can play with injectors, FPRs, AFMs or whatever. Once you find whatever works for you, and sure you can use my build as a guide, but really just, whatever gets you a good AFR. Also find out if your county requires NOx. Cus I would have passed right away if it weren't for that. Sort of glad I didn't though, so I could get my motor right, but it definitely made things difficult.
-Then save your quarters for a megasquirt lol
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