Question about Cars & Trucks
Could FTP sensor be at fault? Where is it located on this vehicle and what to do to change it. Thank you
Most likely the purge solenoid is leaking. It is usually located on the drivers side of the engine. It will have two plastic/rubber lines going to it and one two wire connector (sometimes the connector is red). Unplug the connector, remove the line that goes to the charcoal canister (the other line goes to the intake), start the engine and see if you can feel vacuum on the port on the Purge solenoid. If you can replace it.
Posted on Feb 09, 2012
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Posted on Jan 02, 2017
sounds like the IAT is disconnected, it is either in the flex hose from the air cleaner to the engine or in the air filter housing, on my GM product car it is in the air intake hose, it is small and has a 2 wire connector to it, just pushes and pulls in and out of the flexible air intake hose.
Posted on Mar 13, 2009
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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