Measure target voltage output spanning pin VC and ground terminal E2 . Ensure it maintains a clean 4.5 to 5.5 Volt DC reference profile. If you'd like to dive deeper, let me know: The exact model year of your Toyota Corolla .
Thermistor track logging current air density variables. 3zz fe ecu pinout
Often linked to faulty THW (coolant temp) or VVT-i solenoid signals. Measure target voltage output spanning pin VC and