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IAT Sensor Resistor

 
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Old 04 Mar 2005, 09:14 pm
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Default IAT Sensor Resistor

Well, I threw a couple bucks at one of those resistors seen on E-bay that is supposed to add more power. It says to disconnect the IAT sensor wiring harness from the IAT sensor. I'm pretty sure that the IAT sensor is what connects into the air intake pipe, yes? Well, I've messed around with it a bit, and have found no way to disconnect the wires from the sensor without ripping them out. I messed around with the little red tab on the side, but this didn't seem to do anything. Anybody have any ideas?
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Old 04 Mar 2005, 09:33 pm
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Chromed, first disconnect your battery so you don't get a code. The IAT sensor is the sensor that is on the air intake hose, like you said. Pull up the red tab, and look at it real good. You should be able to lift (with your nail) towards you the tab that clip the sensor to it's housing and pull it out. Next bend the resistor into a U shape and insert it into the sensor's harness plug. Once you see the harness, you'll know what I mean. Then wrap it up with electrical tape so it won't fall out. Hang the harness on one of the bolt of the PCM, and viola! You're done. Oops! Don't forget to reconnect the battery! []
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Old 05 Mar 2005, 12:26 am
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So I'm pulling the red tab out towards me? And when you say sensor, do you mean the very small blue piece that actually seats in the intake pipe?
This is a picture of my intake, and the IAT sensor. Does it look like the right thing, or could it be a different sensor?


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Old 07 Mar 2005, 01:24 am
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I can't see the pic, but yes, you pull the red tab towards the harness. Look for a tab (actually part of the black harness plug) and lift it slighty with your fingernail. Then you pull the harness plug away from the sensor. The sensor will stay in the hose. The harness plug is where the resistor goes. It kinda looks like a wierd single wall outlet. Sorry for the delayed response. I didn't notice you posted again.

By the way, this mod works better if you have a K&N drop in filter or another air intake.
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Black 2004 PT Cruiser GT with chrome accent package, chrome door spears, billet gauge eyebrows, chrome beltline, Autotechnica tail light covers painted body color, TYC by Elegente backup lights and GPS Navigation. Silver dragons on sides and hood. Stage 1! Spark plugs gapped to .040, and installed a set of Crane Firewires. BTG cold air intake, AMX1397\'s Turbo Up Charge Pipe, Boomba Racing BOV, Hallman Pro PX manual boost controller and Mean Green\'s Hyperground Solution.

http://mysite.verizon.net/vze247vu
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Old 07 Mar 2005, 02:14 am
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Thanks for your help Sugamer. I've got an Injen intake, very similar to K&N FIPK. I fooled around with the IAT some yesterday and figured out which tab to pull. Got the chip in and am noticing a little difference, we'll see when I have to fill the tank next if it's worth it. I seem to be keeping my right foot down less, so I suppose that's a good thing. Thanks again.
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Old 07 Mar 2005, 06:29 am
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Your welcome! You'll only be losing 1-2 mpg. The car will always drive like it's driving on a cold day now, ie. the timing will be slighty advanced and will burn the fuel more completely.
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Black 2004 PT Cruiser GT with chrome accent package, chrome door spears, billet gauge eyebrows, chrome beltline, Autotechnica tail light covers painted body color, TYC by Elegente backup lights and GPS Navigation. Silver dragons on sides and hood. Stage 1! Spark plugs gapped to .040, and installed a set of Crane Firewires. BTG cold air intake, AMX1397\'s Turbo Up Charge Pipe, Boomba Racing BOV, Hallman Pro PX manual boost controller and Mean Green\'s Hyperground Solution.

http://mysite.verizon.net/vze247vu
http://www.ptcruiserworld.com/Junior

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Old 13 Jun 2005, 11:35 pm
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That's interesting reading about the resistor. Can anyone tell me what value resistor to use for a non-turbo 2.4lt?
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Old 14 Jun 2005, 08:31 pm
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I actually don't know the value, but when I had my 2001 Touring Edition, I got a pair on Ebay for $5 american. N/A PT's like the cold weather and this mod makes the PCM think it's cool outside.
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Black 2004 PT Cruiser GT with chrome accent package, chrome door spears, billet gauge eyebrows, chrome beltline, Autotechnica tail light covers painted body color, TYC by Elegente backup lights and GPS Navigation. Silver dragons on sides and hood. Stage 1! Spark plugs gapped to .040, and installed a set of Crane Firewires. BTG cold air intake, AMX1397\'s Turbo Up Charge Pipe, Boomba Racing BOV, Hallman Pro PX manual boost controller and Mean Green\'s Hyperground Solution.

http://mysite.verizon.net/vze247vu
http://www.ptcruiserworld.com/Junior

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