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Posted on Nov 11, 2008
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2008 E-350 IAT sensor wires

Which or the 6 colored wires leading to the sensors inside the filter housing are the wires for the IAT?

  • 7 more comments 
  • mike_ledbett Nov 11, 2008

    i bought a chip from SLR Motorsports that gets installed onto the two wires that go to the IAT sensor. There are 6 wires in that harness so I'm not sure which two actually go to the IAT sensor. My E-350 is getting about 7.5 - 8.4 MPG. This chip is supposed to help better the mileage

  • mike_ledbett Nov 12, 2008

    Yes, that appears to be it.

  • mike_ledbett Nov 12, 2008

    I understand that there is no "big improvement" by installing anything on the V-10 E series. I would be happy to get even 8/10ths of a MPG. if this chip gives me any improvement at all I would be happier than what i am now. Our 2003 E-350 with the V-10 gets a bit over 11 MPG and has 135K miles on it. BTW, the 03 has the same IAT sensor plug as the 08 does. Do you have the IAT info for the 03 by chance?

  • mike_ledbett Nov 12, 2008

    i was hoping to run this module for aobut 5-10 tanks of gas. if nothing improved then i would yank it out. I do mainly freeway driving with this work truck too.

  • wood tic Apr 16, 2009

    Could you tell me the color of the two wires that go to the iat on a ford e350 2005 so I can hook up a performance chip . Thanks Achille.

  • Anonymous May 11, 2010

    what do you need to know the the wire colors what is your problem you are trying to dianoise

  • Anonymous Mar 15, 2014

    for a 92 lexis sc 400 what are they wire color IAT sensor,there only 2 wire but there 5 in connect; please help

  • Anonymous Mar 15, 2014

    for 92 lexus sc 400 v8 IAT wire color?

  • Anonymous Mar 15, 2014

    for 92 lexus sc 400 v8 IAT wire color?

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  • Posted on Nov 12, 2008
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Is this what you recieved?2008 E-350 IAT sensor wires - 9af2263.jpg

  • 1 more comment 
  • Anonymous Nov 12, 2008

    i sure didnt find out anything good about this chip

    im always looking for ways to increase my MPG

    just to show you what is inside this pack and from what i have found no one has had any luck with this chip. and also my books only go to 2006 for your van.

  • Anonymous Nov 12, 2008

    hey i just call a good friend of mine who is a ford master tech and he had a 2007 for f150 come into his shop with one of these tha had an engine melt down . what he told me was this is just a resistor and changes the valvue of what the computer sees the air temp is . so it tell the computer that the outside temp is warmer than it realy is . and this leans out the fuel mixture.

    and voids warranty. ford has put out a service bulliton on this chip.

    just hate to see ya cause more problems

    the only programer i have seen that works is the hypertech and it only somtimes get 1 mpg better

    let me know what you do

    thanks paul

  • Anonymous Nov 12, 2008

    Well since the intake air temp is read on the MAF its the gray wire The signal return wire is gray with a red tracer

    let me know how it does

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