IAT Resistance vs. Temperature?
Thread Starter
Teching In
Joined: Sep 2003
Posts: 3
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IAT Resistance vs. Temperature? Does anyone have a copy of the chart that shows the Resistance vs. Temperature for the GM IAT sensors? I remember seeing it recently in a post somewhere but I can't seem to find it again....
Thanks,
Rob
Thanks,
Rob
TECH Apprentice
Joined: Sep 2002
Posts: 366
Likes: 0
From: west coast
Start with a 4.7k resistor. The more ohms the more timing advance, tricks the computer to think it is colder outside. Just experiment with different ones. I used them for awhile and had some good results, more power and better milage for about 90 cents. Now I use EFILive.
Originally Posted by WS6 RULES
Start with a 4.7k resistor. The more ohms the more timing advance, tricks the computer to think it is colder outside. Just experiment with different ones. I used them for awhile and had some good results, more power and better milage for about 90 cents. Now I use EFILive.
Originally Posted by 2xLS1
I have yet to see a table where this happens. Only thing I see is a table that pulls timing when IAT temps get high. Where is the table that adds timing? Now I see where you could edit the IAT correction table to do this, but in almost all factory calibrations I've looked at, the cells below IAT 98 degrees are always set to 0.
Staging Lane
Joined: Feb 2002
Posts: 60
Likes: 0
From: Atlanta, GA
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TECH Senior Member
Joined: Nov 2001
Posts: 7,036
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From: Lake Zurich, IL
For reference... this is the table from a 2002 F-Body .. as you can see, on a stock car the resistor mod will prevent the PCM from pulling timing but won't add additional timing... cylinder airmass is a PCM calculated value (more load = higher gram/cylinder)
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