I have a lot of questions for this project.
I have a 71 nova that i basically swapped a 89 5.7 TBI (LO5) motor in that i rebuilt along with a carb, intake, cam, headers and exhaust. i know i dont need to run a ecu with a carb but my end goal to be able to data log rpm, vacuum and o2. i already have a innovate lc1 wideband installed but with out rpm and vac i cant tell what system to tune, and i dont want to buy the 200 dollar thing innovate sells to log rpm and vac. oh and i want to hook up the knock sensor to detect detonation.
So my idea is to get an ECU (not sure which on yet) and hook up just the wires to the ecu needed to log rpm, vac and o2 in tunerpro rt. i read somewhere that you can hook innovates lc1 to the stock ecu so tunerpro rt can log it.
First question: do i need to get the ecu that came with my motor (1227747) or will any of them work? i just want to make sure all ECUs output the same signal so i dont get the wrong readings (knock sensor).
Next, will tunerpro rt datalog rpm, vac and o2 from the ecu if there is no chip installed? will it also log if not everything is hooked up to the ECU? i.e. fuel pressure, ignition and other useless stuff i dont have?
or better yet does anyone know a cheap way to data log rpm, vac, o2 on your computer?
i am completely new to playing with ECUs but i am good with wiring so im not to scared to try it, any and all help is greatly appreciated
Thanks, Nathan
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