Mass Airflow (MAF) Sensor

Warm up engine to normal operating temperature and let idle. On Sephia, backprobe and measure voltage between MAF sensor connector terminal No. 4 (Red/White wire) and ground. On Sportage, backprobe and measure voltage between MAF sensor connector terminal No. 4 (Red/Green wire) and ground. At idle, voltage should be .8-1.2 volts. When engine is accelerated, voltage should be 3.5-4.0 volts. If voltage is not as specified, replace MAF sensor.