June 28, 201114 yr Author what year is the car/engine model? I can get about 9 ecu's from ej22 91-94 legacy's they are around 15 bucks each near my junkyard.... if you want to try that route... otherwise that seems expensive to me on ecu's i bet the wiring, or alternator or something is bad in a splice. don't give up for a while. Its a 93 EJ22 N/A motor. I don't think it is the ECU because Im still getting power from it. I think it could be that I fried either the cam or crank angle sensors trying to wire hot wires to the signal [+]. Do the signal [+] pins on the ECU even need power? Thanks for you help bheinen74 I will let you know if I need any help.
June 29, 201114 yr the crank angle sensor sends signal for the spark the cam sensor sends signal for fuel. the cams and crank have little tabs on them and when they pass the sensor it changes the current and sends a signal to the ecu i think i have that right i know i have the terms wrong but thats the jist of it. Cheers R.
June 29, 201114 yr Author the crank angle sensor sends signal for the spark the cam sensor sends signal for fuel. the cams and crank have little tabs on them and when they pass the sensor it changes the current and sends a signal to the ecu i think i have that right i know i have the terms wrong but thats the jist of it. Cheers R. So when I sent power to them could I have fried them? Thanks Aaron
June 30, 201114 yr Are you getting solid power to the ecu while cranking' date=' at 10v+ as well?[/quote'] When I did my swap I wired the ecu to the same circuit that the starter draws from. It sucked enough power to not supply enough to the ecu 'while cranking'. 9v wasn't enough. I'd try to find a second circuit to draw ecu power. There is two switched circuits in that pink power plug running up your column. Hook up the dmm to the switched ecu power and crank...if its low, you know... Edited June 30, 201114 yr by Yo'J
July 1, 201114 yr Author When I did my swap I wired the ecu to the same circuit that the starter draws from. It sucked enough power to not supply enough to the ecu 'while cranking'. 9v wasn't enough. I'd try to find a second circuit to draw ecu power. There is two switched circuits in that pink power plug running up your column. Hook up the dmm to the switched ecu power and crank...if its low' date=' you know... [/quote'] Thanks I will check that out!
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