Question about Cars & Trucks
Posted by Anonymous on
Hello I need help. I need to know because my check engine light on and its stated 2 code P0136 and P304. just wondering I have a 1999 grand marquis GS and needing to help me find the location and the code are P0136 bank 1 sensor 2 need location for this? and P0304 what is this one also. please email me ASAP I really appreciate it . thanks.
Posted on Mar 04, 2014
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Posted on Jan 02, 2017
The Intake Air Temperature (IAT) sensor determines the air temperature
inside the intake manifold. Resistance changes in response to the
ambient air temperature. The sensor has a negative temperature
coefficient. As the temperature of the sensor rises the resistance
across the sensor decreases. This provides a signal to the PCM
indicating the temperature of the incoming air charge. This sensor helps
the PCM to determine spark timing and air/fuel ratio. Information from
this sensor is added to the pressure sensor information to calculate the
air mass being sent to the cylinders. The IAT is a two wire sensor, a
5-volt reference signal is sent to the sensor and the signal return is
based upon the change in the measured resistance due to temperature.
Fig. 1: The IAT sensor is located in the air cleaner outlet tube-2.2L engine and 2.4L engine
Posted on Apr 11, 2010
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