VetteHunting

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.

SteveDoten

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

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.

VetteHunting

Well, I dont have a buddies car to try and swap with. And the wiring looks just fine. Whats weird is I just recently took my intake off to clean the Blackwing. After I put it back on, everything was fine. It was good for about 2 or so weeks. Then I took it on a trip to Ocean City this past week, and it threw the light at me. Maybe the sensor just went bad.

VetteHunting

Well its in and seated just fine, but just to be sure I took it back out, checked all the wires and connectors again, and put it back in. I cleared out all of the codes, and of course this got rid of my check engine light. Started up, went for a very short drive. No light yet, but I didnt have a chance to tell if I was still running a little rough. I'll be back with more info at some point.

VetteHunting

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?

VetteHunting

Nobody knows what I should do now???

C5XTASY

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

NocarbutaVetteforme

Did you find the cure for your problem? I am getting the same two error codes. Thanks for any information.

vet86blk

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?

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.

bsmall423

I also have a blackwing intake and am getting the same issue... i am goign to take a look into it when i get home today. I took a quick look at it and everything seemed fine (IE connecter was secure)

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.

NocarbutaVetteforme

Thanks alot for the link. I am almost positive that is what is wrong with mine otherwise the problem wouldn't be intermittent. Great find on that article!!

dukekid68

I just posted about the same issue and I'm glad that I found this thread with a little more digging. I also have a blackwing, but it's been in for a few k-miles now and no issues. I'll have to poke around a bit later tonight or tomorrow.

I'm having the same intermittent issue so I'm thinking I've got a loose wire somewhere.

BlueRag

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

flybyyou

Those wires are very thin.
I bet you broke one at the connector.
Just a hunch from what I've read here.
I'd check that first.
You will need a meter to do this.

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.

flybyyou

I have used a small screwdriver to pop the pin out and reconnected the wire successfully to the pin if you don't want or need to replace the connector