Experimenting with Intake Air Temp. Request for comments.

SouthArk370Z · 02-07-2013, 06:51 PM

Quote:

Originally Posted by JARblue

So I subscribed to this thread pretty much immediately for results, but I am now also wondering what kind of temperature difference you're hoping for and/or expecting, SouthArk.

I'm not looking for a big drop, 4-5°F would make me happy. I'd also like to get temps back to normal a lot quicker after sitting in traffic.

Quote:

Originally Posted by JARblue

... Do you know at what temps the ECU will interfere? Is the ECU using the same IAT reading I get from the scangauge?

IIRC, the ECM starts pulling timing advance when IAT gets above 95°F.

Yes. The ECM uses the temp sensor in the bank 1 (right side) MAF and that is what you see on the ScanGauge. I wouldn't be too surprised to find out the sensor data is massaged a bit before being reported, but it should be close to what the sensor is seeing.

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