INSPECTION PROCEDURE 1. INSPECT FUEL PUMP (a) Inspect the resistance of the fuel pump. (1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the fuel pump. (b) Inspect the operation of the fuel pump. (1) Connect the battery's positive (+) lead to terminal 1 of the connector, and the negative (-) lead to terminal 2. Check that the fuel pump operates. NOTICE:
If the result is not as specified, replace the fuel pump. |
Toyota Tundra Service Manual > Sfi System: Intake Air Temperature Sensor 1 Circuit Range / Performance (P0111)
DESCRIPTION The Intake Air Temperature (IAT) sensor, mounted on the Mass Air Flow (MAF) meter, monitors the IAT. The IAT sensor has a built-in thermistor with a resistance that varies according to the temperature of the intake air. When the IAT is low, the resistance of the thermistor increases. Whe ...