well i have a jaw 1.03 WB02,(go to 14point7.com for more info) after having it for over a year, i finally got around to installing it, i was and still use my ngk wb02 but i can't log off it.
well the jaw can datalog the afr,rpm and has two 0-5 volt inputs to log also.
the rpm signal can only be a 0-5 volt and not a 0-12 volt like most are,if its over the 5 volt it can ruin the jaw unit.
you can build a simple circut with a resistor,capacitor and a zenor diaod to convert the signal to a 0-5 volt, which i did and just ran the wire from the yellow/blue wire off the coil i assume thats a 12 volt signal and did not want to risk ruining the jaw unit, it works with the circut but is slightly off
(only about 200rpm off) compared to the stock tach, which i soppose is a little off anyway(stock tach).
i would rather splice into a wire coming off the ecu yellow plugs,and just get rid of the little circut i built anyway.
so does anyone know of a 0-5 volt tach signal at the ecu?
also does anyone know or have the wiring diagram of the stock air meter, i want to log what the airmeter is doing/seeing.
i will also log tps and later will hook up a map sensor to log boost.
this is for my awd protege(winter dd) that is running a stock n/a bp with n/a cams, a crappy flowing logmanifold,gtr intake,.42/.48 t3,gtx ecu,n/a harness with 4 wire tps,rx-7 VAM, and 460cc injectors at 16-18 psi, the car runs remarkably well this way but is rich under boost,like 10's. if/when i get the logs i will post them for others to see,if there is interest.
well the jaw can datalog the afr,rpm and has two 0-5 volt inputs to log also.
the rpm signal can only be a 0-5 volt and not a 0-12 volt like most are,if its over the 5 volt it can ruin the jaw unit.
you can build a simple circut with a resistor,capacitor and a zenor diaod to convert the signal to a 0-5 volt, which i did and just ran the wire from the yellow/blue wire off the coil i assume thats a 12 volt signal and did not want to risk ruining the jaw unit, it works with the circut but is slightly off
(only about 200rpm off) compared to the stock tach, which i soppose is a little off anyway(stock tach).
i would rather splice into a wire coming off the ecu yellow plugs,and just get rid of the little circut i built anyway.
so does anyone know of a 0-5 volt tach signal at the ecu?
also does anyone know or have the wiring diagram of the stock air meter, i want to log what the airmeter is doing/seeing.
i will also log tps and later will hook up a map sensor to log boost.
this is for my awd protege(winter dd) that is running a stock n/a bp with n/a cams, a crappy flowing logmanifold,gtr intake,.42/.48 t3,gtx ecu,n/a harness with 4 wire tps,rx-7 VAM, and 460cc injectors at 16-18 psi, the car runs remarkably well this way but is rich under boost,like 10's. if/when i get the logs i will post them for others to see,if there is interest.
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