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Faults, Fixes and DIY Please share your experience and knowledge with other members by contributing your own DIY, or by helping another member find the elusive fix!


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Old Wed, Feb-26-2014, 12:45:40 AM   #1
cold m3
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Arrow Intake Air Temperature Sensor Relocate (Build your own)

This is a DIY on how to piece together a Intake Air Temperature Sensor Relocate kit the proper way on your own.

Parts needed:
Temperature sensor
Bosch EV1 female fuel injector clip with boot and connectors
22 gauge wire 5ft total
black wire loom

Simple steps:
1. Connect wires to each prong
2. Push finished prongs into harness
3. Connect rubber boot and loom to harness

Link with photos and details of each step for building harness
http://www.m3support.net/thread/200/...erature-sensor
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Last edited by cold m3; Mon, Dec-29-2014 at 09:08:18 PM.
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Old Wed, Feb-26-2014, 03:48:32 AM   #2
wannasupra
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Default Re: Intake Air Temperature Sensor Relocate (Build your own)

wow. awesome diy.
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Old Wed, Feb-26-2014, 05:51:26 AM   #3
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Default Re: Intake Air Temperature Sensor Relocate (Build your own)

Awesome DIY. Thanks.
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Old Thu, Mar-13-2014, 07:18:40 PM   #4
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Default Re: Intake Air Temperature Sensor Relocate (Build your own)

whats the idea behind this? I don't understand.
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Old Wed, Jul-09-2014, 10:10:56 PM   #5
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Default Re: Intake Air Temperature Sensor Relocate (Build your own)

Bumping an older thread to ask a question.

Why don't people relocate the IAT to the stock plenum in the location of the CSL IAT?

It would seem to make sense, no? This being the closest to the actual engine intake as possible.

The intake hole on the stock box is surely large enough to get your hand in there to the put the back nut on...

Last edited by DodgeStratus; Wed, Jul-09-2014 at 10:14:09 PM.
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Old Thu, Jul-10-2014, 05:58:03 AM   #6
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Default Re: Intake Air Temperature Sensor Relocate (Build your own)

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Originally Posted by DodgeStratus View Post
Bumping an older thread to ask a question.

Why don't people relocate the IAT to the stock plenum in the location of the CSL IAT?

It would seem to make sense, no? This being the closest to the actual engine intake as possible.

The intake hole on the stock box is surely large enough to get your hand in there to the put the back nut on...
I think cause doing it close to where the air comes in will be the coldest air, and will make the car think it's running more efficient.
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Old Sat, Jul-12-2014, 09:36:41 AM   #7
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Default Re: Intake Air Temperature Sensor Relocate (Build your own)

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Originally Posted by infinkc View Post
I think cause doing it close to where the air comes in will be the coldest air, and will make the car think it's running more efficient.
As I understand it, if the air is cooler the DME will just advance the ignition. If it's advanced too far in some conditions it will just feel like someone's given the car a cheep car park remap.

It's important to place the IAT in a location where the temperature of the intake is relatively realistic to ensure that the engine mapping is optimum.

The main reason for relocating the IAT sensor is to due to the sensor body getting heat soaked.

In normal day to day driving the heat from the engine block convects to the body of the MAF or IAT sensor. The sensor will at this point fail to provide accurate intake air temperatures.

Last edited by Bigfoot; Sat, Jul-12-2014 at 09:45:22 AM.
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Old Wed, Jan-14-2015, 08:40:05 PM   #8
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Default Re: Intake Air Temperature Sensor Relocate (Build your own)

Quick thread bump - the link posted above does not seem to work. Anyone have a refresh or a different DIY? thanks!
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Old Wed, Jan-21-2015, 03:33:51 AM   #9
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Default Re: Intake Air Temperature Sensor Relocate (Build your own)

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Originally Posted by Kansas Corey View Post
Quick thread bump - the link posted above does not seem to work. Anyone have a refresh or a different DIY? thanks!
Link should work now!
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Old Tue, Jul-17-2018, 05:09:09 AM   #10
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Default Re: Intake Air Temperature Sensor Relocate (Build your own)

Can I reuse my temp sensor or do I need a new on?

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Discussing Intake Air Temperature Sensor Relocate (Build your own) in the Faults, Fixes and DIY Forum - Please share your experience and knowledge with other members by contributing your own DIY, or by helping another member find the elusive fix! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)