i think i figures out why i cooked my old ecu. the starter wire was wired to the power ground for the ecu. just wanna shoot the po. but it was my fault for not competely checking every wire in the ecu harness. i pinged most of them yesterday gonna recheck them again today and wrap it back up and put it in the car, hopefully she starts now.
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i was getting a code 14 code 31 and code 43. but after tinkering with it with kotu100. now i get code 14 and code 51. i did the improved grounding mod for the igniter. while its raining also going to check the cps, airflow meter and coilpacks. to triple check they are all still good.
tested the coilpacks and i get .5 ohm on all of them. tested the igniter and it tests good after the ground mod. still going to double check, thou. and i am going test the afm per the haynes manual for the supra. seeing as it is the only place i could find to test the afm. other than just the temp sensor.