Haltech Sprint 500+ Boomslang PnP needs IAT?? - Lexus IS Forum
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post #1 of 4 (permalink) Old 02-17-2017, 01:05 PM Thread Starter
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Haltech Sprint 500+ Boomslang PnP needs IAT??

I am going to be using a Haltech sprint 500 with the boomslang plug n play harness on a 2002 IS300. Motor I'm using is the 1jz vvti. I am trying to keep the setup as simple as possible but still want the car to perform 100%

-While searching, I read that you have to use the stock maf. Is this true?? Can you wire in a Haltech or universal IAT sensor and use the on-board 1.5 bar map sensor??

-Also, in the boomslang harness, does the stock IS300 ecu control VVTI?? If it does, it should handle the 1jz vvti fine.

-If I use the jzx100 throttle body, which should not have dbw. Do I have to separately wire in the TPS??

Thanks in advance.

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post #2 of 4 (permalink) Old 02-17-2017, 04:51 PM
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I have haltech sprint controlling my 2j. Yes stock ecu controls vvti and yes Uu can wire in an aftermarket iac into haltech instead of the maf sensor. I'm not too sure about the throttle body tho

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post #3 of 4 (permalink) Old 02-17-2017, 10:30 PM Thread Starter
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Originally Posted by dreadis300 View Post
I have haltech sprint controlling my 2j. Yes stock ecu controls vvti and yes Uu can wire in an aftermarket iac into haltech instead of the maf sensor. I'm not too sure about the throttle body tho
Cool. Thanks for the response.

But did you mean iat/ait instead of iac?? Adding a iat seems easy enough. Just have to find the pin out on the haltech and add the 2 wires.

If I do a q45 throttle body, which has a tps sensor, maybe I can add that to the haltech also.

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post #4 of 4 (permalink) Old 02-18-2017, 02:56 AM
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Yeah intake air temperature.
My home boy has the q45 throttle body on his na-t and running an aem v2. So it's possible, it use to be a common upgrade back in the day for more volume

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