please help ( P1111 and P0113 )
TECH Resident
Joined: Oct 2005
Posts: 781
Likes: 0
From: Taxme, Ohio
I would test the disconnected sensor with an ohm meter. If you get infinity then you can be sure the sensor is blown. Otherwise, you can probably google the expected resistance(s).
The other things that come to mind is a continuity check on the wiring from the sensor weatherpack to the pcm. Just some thoughts because I've never encountered the actual numbers of that code. I have left my IAT sensor unplugged before and gotten a MIL. Plugging the sensor back in turned it off. I didn't check to see what the DTC was.
I do know that I got a circuit voltage high code for my MAP sensor after replacing my intake manifold. The sensor became unplugged during the installation. That is why I suspect you have an open circuit to, from or in your IAT sensor. It would be good if you could borrow a known working sensor. You can also simply bypass the IAT with a resistor to see if the code goes away. The idea is to eliminate one possibility after another.
The other things that come to mind is a continuity check on the wiring from the sensor weatherpack to the pcm. Just some thoughts because I've never encountered the actual numbers of that code. I have left my IAT sensor unplugged before and gotten a MIL. Plugging the sensor back in turned it off. I didn't check to see what the DTC was.
I do know that I got a circuit voltage high code for my MAP sensor after replacing my intake manifold. The sensor became unplugged during the installation. That is why I suspect you have an open circuit to, from or in your IAT sensor. It would be good if you could borrow a known working sensor. You can also simply bypass the IAT with a resistor to see if the code goes away. The idea is to eliminate one possibility after another.
Staging Lane
Joined: Feb 2007
Posts: 77
Likes: 0
I would test the disconnected sensor with an ohm meter. If you get infinity then you can be sure the sensor is blown. Otherwise, you can probably google the expected resistance(s).
The other things that come to mind is a continuity check on the wiring from the sensor weatherpack to the pcm. Just some thoughts because I've never encountered the actual numbers of that code. I have left my IAT sensor unplugged before and gotten a MIL. Plugging the sensor back in turned it off. I didn't check to see what the DTC was.
I do know that I got a circuit voltage high code for my MAP sensor after replacing my intake manifold. The sensor became unplugged during the installation. That is why I suspect you have an open circuit to, from or in your IAT sensor. It would be good if you could borrow a known working sensor. You can also simply bypass the IAT with a resistor to see if the code goes away. The idea is to eliminate one possibility after another.
The other things that come to mind is a continuity check on the wiring from the sensor weatherpack to the pcm. Just some thoughts because I've never encountered the actual numbers of that code. I have left my IAT sensor unplugged before and gotten a MIL. Plugging the sensor back in turned it off. I didn't check to see what the DTC was.
I do know that I got a circuit voltage high code for my MAP sensor after replacing my intake manifold. The sensor became unplugged during the installation. That is why I suspect you have an open circuit to, from or in your IAT sensor. It would be good if you could borrow a known working sensor. You can also simply bypass the IAT with a resistor to see if the code goes away. The idea is to eliminate one possibility after another.
TECH Resident
Joined: Oct 2005
Posts: 781
Likes: 0
From: Taxme, Ohio
You might try a 24k resistor but I always suggest searching the web first. Here's a link that might be of some help: IAT information
