I have a 1999 Chevy cavalier Z24 2.4L and when i step on the gas it makes a pop pop pop sound like its miss fireing so i took it to the auto store and code P0113 IAT Sensor well i havnt had one in over 6 months it has been running fine with out it up until about a month ago so is there anything else it could be?

SOURCE: ECM Location

For one i dont need your vin its a z24 which means it has a 2.4l engine it does not have an ECM it has a PCM powertrain control module, which is located for your car in the right rear corner topside of your engine bay, in 1995-2001 it is located inside the right front fender. I hope this info helps...

SOURCE: rough idle on 1999 chevy cavalier z24

Check for vacuum leaks. Spray some carb cleaner or WD40 around the intake manifold, trottle body and any vacuum lines. Check for loose connections on engine wiring harness (Maybe you disconnected a sensor, and forgot to re-attach it?).

SOURCE: 1999 cavalier z24 lower 2 fan settings not working

where is heat resister on 99 cavalier...

ZJ Limited

• 17989 Answers
• Posted on Apr 11, 2010

SOURCE: where is the iat sensor located on a 1999 chevy cavalier 4cyl

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

Hope helped.

SOURCE: How do i change a

You may find it easier to remove the left front tire, if possible. If not turn the wheel all the way to the right. Remove the inner fender well, there are numerous 7mm bolts holding it on from under the spoiler area and around the front of the tire opening. There is one push style clip at the very top, just pull or lightly pry out. Look inside the opening to the tranny. Just above the axle shaft to the front there is the reverse switch. It is a plastic (white or black) body with a metal socket base, there are 2 wires going to it, remove the connector. Use a deep 19mm or 3/4" socket or a short wrench to remove the switch. Reverse the process.