I have voltage to pin 46, can’t pull codes. Ecm unplugged and shows voltage to pin46 on the harness side. I have an Auto Ecu with an Auto 02 Harness. Unplugged 02 harness , tranny harness, clutch switch & NSS and still shows voltage using a test light. I unplugged all the sensors that pin 46 lead to (tps,egr,act,ect, & map) and still shows voltage. Only way I was able to get rid of the voltage was by unhooking the black 10 pin connecter. unplugging the white 10 pin had no effect to voltage on pin 46. All tests were with key to crank position & clutch or no clutch in had no affect. can the black 10 pin be shorting my pin 46 somehow ? anyone have any input let me know. Its an 89 Notchback