IAT sensor problems - Maintenance and Repair Forum

Forum Post / Reply
You must log in before you can post or reply to messages.
IAT sensor problems
Saturday, September 03, 2005 3:47 PM
Every time the radiator fan comes on my ETS and CEL light come with code PO113 Intake Air Temperature Sensor Circuit High Input. I just replaced the IAT sensor, ECT sensor, and radiator fan with no luck. I am stuck thinking I have a short or something. Anyone had this problem or an idea of how to fix it?

Re: IAT sensor problems
Saturday, September 03, 2005 6:56 PM
i had/ still have the same problem. i have replaced my IAT sensor 3 times or i made the dealership do it. CEL is always on. But i took it up to autozone and they used the ob2 reader and deleted it. Its been about 2 weeks and no light. Oh also try disconnecting the battery for like 15 min see if that works to. Give the computer a chance to adjust to the new sensors. Just a suggestion. Good luck
Re: IAT sensor problems
Sunday, September 04, 2005 9:47 AM
I figured it out, there was a short in the wires that go to the IAT sensor. The voltage at the sensor should read 5 volts, i noticed that when i wiggled the wire it fluctuated from 0 - 5 on the volt meter. I just cut off the plug and hard wired a 4.7k resistor from Radio Shack (5 for a dollar) into it and it works fine. The resistor from Radio Shack tricks the car into thinking that the incoming air temperature is 55 F.
Re: IAT sensor problems
Sunday, September 04, 2005 1:48 PM
well maybe ill have to do that if i get the cel back lol. good info
Forum Post / Reply
You must log in before you can post or reply to messages.

 

Start New Topic Advanced Search