Just installed CAI, and there's trouble...please help!

[InspectorGAGT]

I finished installing my FDP cold air tonight, everything went fine with the install, but I've thrown an SES light and I don't understand why. I checked everything over (IAT's in place, MAF wiring harness is in properly, etc etc) and everything seems to be in order...has this happened to anyone else? How can I get rid of this damn SES?

[IanGT99]

Um, did you unhook the negative terminal of the battery after you installed the CAI? That could be the reason for the SES. If you don't do that, the ECU doesn't have a chance to adapt to the new A/F ratio. Just unhook the terminal, let it sit for a minute, then hook it back up. It'll mess up all your settings on your CD player, but those are all retrievable.

[InspectorGAGT]

The terminal is simply the cable connected to the negative side of the battery, yes? (Sorry, I'm what's known as a mechanical moron.) :)

[Kodeblue]

Yes

[jaketuff]

You must leave it to sit for at least 15 minutes to make sure the code goes and the PCM resets.

JOUT

[InspectorGAGT]

Alright, thanks very much, I'm gonna go do that right now...I'll let you guys know what happens in a few minutes. Thanks for your help!

[InspectorGAGT]

Everything worked out fine, no more of that ugly yellow light business...thanks guys

[jaketuff]

Originally posted by InspectorGAGT
Everything worked out fine, no more of that ugly yellow light business...thanks guys

Good stuff... if it comes back in a few miles... let us know.

I hope that anti-jinxed another SES!

JOUT

[InspectorGAGT]

Originally posted by jaketuff
Good stuff... if it comes back in a few miles... let us know.

I hope that anti-jinxed another SES!

JOUT

I think you might have actually jinxed it man :( ...about 10 minutes into the ride to work this morning, the dreaded yellow light came back on...again, any ideas as to why? There's an AutoZone on the way home from work, I think I'm gonna stop there around 4:30 and have them read the code (they still do that for free, right?)

[cavingman]

sure do

[PontiacGT2K]

Yeah def. go to auto zone. Disconnecting the battery will never delete a code, it'll just make it disappear for a few miles. They'll tell you what it is (probably running a little lean) and delete it for you.

[InspectorGAGT]

Thanks, I'll be heading there in a few minutes, I'll let you guys know how it goes.:thumbs:

[jaketuff]

Originally posted by PontiacGT2K
Yeah def. go to auto zone. Disconnecting the battery will never delete a code, it'll just make it disappear for a few miles. They'll tell you what it is (probably running a little lean) and delete it for you.

And then it will come back again if the issue remains! AZ should at least tell you the code so you'll know what the issue is...
Getting rid of the code, such as a lean code, will take some more modding.

JOUT

[DragonLo]

Will and Auto Zone read codes for you on what is going on with ya ride....I have a local one in Waterville Maine, and would love to find out why my Engine light is on in my 98GAGT.

[5-lO]

Originally posted by InspectorGAGT
There's an AutoZone on the way home from work, I think I'm gonna stop there around 4:30 and have them read the code (they still do that for free, right?)

Originally posted by cavingman
sure do

[DragonLo]

Makes sense, jus us people in Maine are kinda back-woods and all, and I have never heard of them doing ANYTHING for free.

[PontiacGT2K]

I thought the same thing....but they do.

[InspectorGAGT]

Well, I got the code read, and it is a lean condition. The code was P0113, IAT High Input. The guy I spoke to at AZ said that I need to make some adjustments and richen up the air/fuel ratio. So, that brings us to our next question: how do I make the ratio richer?

[IanGT99]

Well, I don't know how technical this may be, but if you do the IAT sensor override mod (found in the mods section), it'll make the car run more rich. I could be way off base on this, but I would have no ideas other than that.

[BLACK99GT/ROB]

Check your sensor connection! I had the same problem and it was the sensor connection.After you connect properly, if this is the problem,make sure you unhook your battery cable for a few minutes to allow the pcm to relearn. Sent you a PM.

[Molson]

check that the IAT is fully in the airstream too.

[InspectorGAGT]

The IAT seems to be completely within the airstream, and I didn't see any black rubber fitting on the sensor anywhere, as Black99GT/Rob suggested to me via PM...however, just to be certain, this fitting would be below the "lip" of the sensor, yes? All I saw under that lip was the plastic that led up to the sensor.

Ian said that the IAT sensor extension might help...I'm assuming he means that by moving the sensor closer to where the air is coming in, the reading will be cooler and the engine will then richen up the ratio. My only question is, how effective will/might this be, and if it is, will it be enough to stop the SES?

[PontiacGT2K]

The extension is a waste of $$. It's not like you've got a 1,000 degree engine bay, and between the cone and the TB the air doesn't get THAT MUCH warmer.

[InspectorGAGT]

Originally posted by PontiacGT2K
The extension is a waste of $$. It's not like you've got a 1,000 degree engine bay, and between the cone and the TB the air doesn't get THAT MUCH warmer.

I see...anyway, the flippin f*ckin SES came back on this morning. If the IAT sensor extension won't cure this, anyone got any ideas as to what will?

[IanGT99]

I recommended the override mod, not the extension...it'll make the A/F ratio more rich. You could try the extension, but I agree that it's a waste of money. The air going through the tube is sucked in too fast for it to gain in temperature from the end of the tube. It may fluctuate a few degrees, but not enough for it to matter. You might wanna try getting a new IAT sensor. It wouldn't be that expensive, and I think you could install it yourself. Just giving some ideas here...

[Molson]

extension is a waste, if you want to extend it, cut the wires and solder in longer wire. hehe

[InspectorGAGT]

Sorry Ian, I must have read your post wrong or something, I didn't see that you meant the override and not the extension. Anyway, what do you guys think would be more effective in curing this: the sensor override or the SLP air temp module (http://www.slponline.com/view_product.asp?PARTNUMBER=63012)? Or, are these basically the same thing?

[InspectorGAGT]

Originally posted by InspectorGAGT
Sorry, I'm what's known as a mechanical moron.

As I stated earlier in the thread, I am a complete idiot. Just as BLACK99GT/ROB said, the other half of my IAT sensor is still in the stock rubber hose that connects the MAF to the TB. Now I just have to get that thing out and put it back where it should be.

[IanGT99]

Originally posted by InspectorGAGT
Sorry Ian, I must have read your post wrong or something, I didn't see that you meant the override and not the extension.

Hey, it's no problem, bud. Just glad to hear you have the solution!

[InspectorGAGT]

Yeah, me too...and now for another silly question, how do I get the other half of the sensor out of the stock fitting? It almost seems like the sensor is part of the fitting, but I know that can't be right.

[BLACK99GT/ROB]

Pull on it very carefully.And when you go to put in in CAI be careful not to mess up the little rubber ring it slips into.Glad I could help you out! Rob

[SweetAlero99]

Originally posted by Molson
extension is a waste, if you want to extend it, cut the wires and solder in longer wire. hehe

finally someone is using there head!

[Skillet]

STOP!!!!!
http://www.grandamgt.com/forum/showthread.php?s=&threadid=9001&highlight=020603005

I had the same problem! Did this and fixed it. Seems that the insulation inside the pigtail breaks on occasion and needs to be replaced.

Chris

[InspectorGAGT]

I don't think that's the problem...Rob told me what happened when he installed his CAI, and he threw the same code that I did...I put the other half of my IAT sensor back in yesterday, unhoooked the battery to reset the PCM, and I'm going to autozone today to have them clear the code to make sure it's gone. If I throw that same P0113 code again after it gets cleared today, then I'll look into this insulation business. Thanks for posting that though, I appreciate it.

[Skillet]

No prob man