Intake air temperature sensor

The code I get is 24. I found out that the sensor is in-fact built into the mass air flow meter so i think im going to try to replace that. I originally thought it was the fuel pump bc i couldn't hear it come on but i replaced that and i also replaced the fuel line bc it was old and rusty. The spark plugs and wires are also new. I'm not positive but i think the mass air flow is the last thing to replace, also all of the wires look great and no corrosion on them or the battery. What is your opinion?

Testing is always best. If the code is 24, check the circuit between the engine control module and the IAT to make sure there is little to no resistance. If the circuit is good, test the IAT against the service manual. It will have a graph which will tell you what the voltage should be on those wires for a given temperature. If it is correct, the PCM is likely bad. If it is incorrect, replace it. The fuel pump. Is it running now? You may also need to check the fuel pump relay, fuse, circuit, and grounds at the fuel tank. If the fuel tank is loose, it may not be grounded.

Ya all fuses are good and it comes on when i turn the key over. How can i check the voltage? I dont have a device to do this. Will i have to buy one or is therre another way to check it?

Ok, good for the fuel pump. For checking the voltage on the idle air temperature sensor, you will need a multimeter. They are less than $20, and you can get any cheapo one you want at the discount stores, auto parts stores, or even sears (craftsman). The process: note the temperature outside, ground the multimeter to the negative post on the battery, then measure the voltage for each wire with the backprobe attachment. If you do not have a backprobe attachment, use a paperclip (google a video). I need to know the voltages of each wire, noting the color of the wire and any stripes. If you get 0 volts on some, that is fine too.

I replaced the IAT and the code went away but im still getting no start. Spark plugs are fine and wires are fine. I'm trying to get a multimeter today but could it possibly be the fuel filter may be clogged?

The code will go away any time the battery is disconnected. The engine needs to run to set the code if there is an error. As for the fuel system, use a fuel pressure gauge to measure fuel pressure or spray starting fluid into the throttle body to see if it tries to start.

I wasn't getting a spark so i replaced the distributor cap, wires and spark plugs but im still getting no spark. My battery is possibly bad bc it tries to start but slowly quits. My lights all come on but im not sure if it's bad or not

I would have it charged and tested by your local auto parts store. It's typically free. You will want to test for power to the ignition coil before moving forward. If there is no power to the coil, you'll have to track down to find where power is lost. If there is power to the coil, look on youtube, find a method you like, charge your battery, and test the ignition coil)

did you every figure out what was wrong with this car?