97 toyota tacoma 2.4January 11, 2015engine code po110 Keywords:code p0110Tacoma 1 thought on “97 toyota tacoma 2.4” Freeautomechanic January 12, 2015 at 10:32 am P0110 Toyota – Intake Air Temperature Circuit Malfunction Possible causes – Faulty Intake Air Temperature (IAT) sensor – Dirty air filter – Intake Air Temperature (IAT) sensor harness is open or shorted – Intake Air Temperature (IAT) sensor circuit poor electrical connection Description The Intake Air Temperature (IAT) sensor is built into mass air flow sensor or in some vehicles mounted to the air filter duct housing. The sensor detects intake air temperature and transmits a signal to the Engine Control Module (ECM). The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in response to the temperature rise. The Intake Air Temperature signal is used as an input for various systems in the vehicle. When is the code detected? An excessively low or high voltage from the sensor is sent to ECM. Source: Engine Trouble Codes Comments are closed.