How to Change the IAC and TPS Sensors for 95-99 Neons



Tools Needed:
Ratchet with 13mm socket
Flat Head Screw Driver
Star Screwdriver

Start by determining what needs to be removed to access your throttle body. Things should include: Intake (AEM aftermarket Intake for mine), Vacuum Hose(s), Battery (removal not needed for mine, but might make for a little more room).

 

Remove the intake that is connected to the throttle body. I was able to disconnect only the top section and still access the throttle body. Now disconnect the negative cable on the battery. This will allow the computer to find the sensor as new when it is connected again.



Once you can fully access the throttle body then start by removing the two 13mm bolts holding it to the intake manifold. After those are taken out then pull up on the throttle body and turn to the side to get it out from the clutter. Once more accessible you now see the two sensors attached to the left side and the throttle cable attached to the right.



If you are just wanting to change the sensors it can be done now, but if you would like to completely remove the throttle body then you will need to remove the throttle cable and the frame piece that it is attached to (two small bolts).

Remove the connection(s) for the sensor(s). For each sensor there will be a star shape screw driver needed. The larger copper colored one is the IAC (Idle Air Controller) and the smaller black one is the TPS (Throttle Positioning Sensor).

After changing the sensor(s) then reverse the process. Connect the battery cable last and then start the engine.

 



How To by Joe