IAT sensor reading high voltage?
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 4,813
Likes: 2
From: We cant stop here... this is bat country
IAT sensor reading high voltage?
Im getting 2 current codes popping up for my IAT sensor. One is P1111, the other P0113. These are IAT sensor high voltage, and IAT sensor intermittent high voltage. What should I do? Im running like hell, and throwing a check engine light.
Le Mans Master
Joined: Sep 2003
Posts: 6,276
Likes: 227
From: Farmington CT
Cruise-In VII Veteran
swap the IAT from your buddies car(assuming he has a 97-00) and see if this fixes the problem
also check your wiring, especially where the aft of the driver's side intake
also check your wiring, especially where the aft of the driver's side intake
Drifting
Joined: May 2000
Posts: 1,917
Likes: 3
From: Southern NH
Sounds like the IAT thermistor is reporting a high impedance (or open circuit). Check the connector on it to make sure it's firmly seated and the wires are not broken. The intermittent code implies that the circuit is being opened sporatically, like if the connector is loose.
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 4,813
Likes: 2
From: We cant stop here... this is bat country
Originally Posted by connecticut
swap the IAT from your buddies car(assuming he has a 97-00) and see if this fixes the problem
also check your wiring, especially where the aft of the driver's side intake
also check your wiring, especially where the aft of the driver's side intake
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 4,813
Likes: 2
From: We cant stop here... this is bat country
Originally Posted by JC in XTC5
Sounds like the IAT thermistor is reporting a high impedance (or open circuit). Check the connector on it to make sure it's firmly seated and the wires are not broken. The intermittent code implies that the circuit is being opened sporatically, like if the connector is loose.
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 4,813
Likes: 2
From: We cant stop here... this is bat country
Well, cleared the codes and went for a drive, and got the same 2 codes w/ the check engine light. What do I do now? Replace the IAT sensor? What about the connector?
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Originally Posted by JC in XTC5
Sounds like the IAT thermistor is reporting a high impedance (or open circuit). Check the connector on it to make sure it's firmly seated and the wires are not broken. The intermittent code implies that the circuit is being opened sporatically, like if the connector is loose.
I believe your sensor has failed. I probably would have guessed a shorted sensor, rather than an open one, due to the high voltage code, but it really doesn't make any difference. If you replace it, I'd bet your problems go away. 
Good luck!
Ed
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Intermediate
Joined: Sep 2003
Posts: 48
Likes: 0
From: Georgetown TX
I am having a similar problem. Just the P0113 code. I checked the wireing, cleared the codes and replaced the IAT sensor yesterday. The "Active handling warming up" message came on this morning again then about 10 miles down the road the Ck Eng. light came on again.
Found that after the car sites all night the "Active Handling warming" message comes on. The IAT sensor is telling the PCM that it is cold out I think.
I read a little on the LS1tech web site. Is anyone else that is getting this code running a Blackwing air filter?
Found that after the car sites all night the "Active Handling warming" message comes on. The IAT sensor is telling the PCM that it is cold out I think.
I read a little on the LS1tech web site. Is anyone else that is getting this code running a Blackwing air filter?
Intermediate
Joined: Sep 2003
Posts: 48
Likes: 0
From: Georgetown TX
Hey Vettehunting:
Check this out:
http://ls1tech.com/forums/showthread...ighlight=P0113
Looks like I know what I am going to be doing tonight.
Check this out:
http://ls1tech.com/forums/showthread...ighlight=P0113
Looks like I know what I am going to be doing tonight.
Racer
Joined: Oct 2004
Posts: 261
Likes: 0
From: Lake In The Hills IL
Originally Posted by vet86blk
Hey Vettehunting:
Check this out:
http://ls1tech.com/forums/showthread...ighlight=P0113
Looks like I know what I am going to be doing tonight.
Check this out:
http://ls1tech.com/forums/showthread...ighlight=P0113
Looks like I know what I am going to be doing tonight.
Intermediate
Joined: Sep 2003
Posts: 48
Likes: 0
From: Georgetown TX
I initially thought maybe the Blackwing had something to do with damaging the IAT sensor because of the number of people having problems that were using this filter.
The more I look into the the more I think the connector is just faulty.
Hopefully tomorrow I will have time to look at it more closley.
The more I look into the the more I think the connector is just faulty.
Hopefully tomorrow I will have time to look at it more closley.
Drifting
Joined: Jun 2002
Posts: 1,945
Likes: 41
From: Corinth TX
Originally Posted by vet86blk
Hey Vettehunting:
Check this out:
http://ls1tech.com/forums/showthread...ighlight=P0113
Looks like I know what I am going to be doing tonight.
Check this out:
http://ls1tech.com/forums/showthread...ighlight=P0113
Looks like I know what I am going to be doing tonight.
Pro
Joined: Dec 2005
Posts: 661
Likes: 0
From: Flemington NJ
Originally Posted by vet86blk
I initially thought maybe the Blackwing had something to do with damaging the IAT sensor because of the number of people having problems that were using this filter.
The more I look into the the more I think the connector is just faulty.
Hopefully tomorrow I will have time to look at it more closley.
The more I look into the the more I think the connector is just faulty.
Hopefully tomorrow I will have time to look at it more closley.
I'm having the same intermittent issue so I'm thinking I've got a loose wire somewhere.
Pro
Joined: Dec 2003
Posts: 651
Likes: 1
From: Z16 #1990 Ridgecrest CA
I had the same issue with a 2000 C5 I just bought. I unplugged the IAT connector and sprayed it with electronic spray cleaner. the problem hasn't came back since (two weeks).
good luck,
Stan
good luck,
Stan
Instructor
Joined: Apr 2004
Posts: 132
Likes: 0
From: Fort Worth Texas
The connector or the sensor is bad. When I recently got these codes I replaced the sensor and that didn't cure the problem. The male connector that plugs into the sensor was faulty. Spliced in a new $18 connector and that so far as cured the problem.
Melting Slicks
Joined: Jul 2006
Posts: 2,224
Likes: 0
From: Ready and Willing and Able
Originally Posted by 2QuikZ06
The connector or the sensor is bad. When I recently got these codes I replaced the sensor and that didn't cure the problem. The male connector that plugs into the sensor was faulty. Spliced in a new $18 connector and that so far as cured the problem.
