Intake Air Temp Sensor HP+ Mod
My understanding is that a resistance change to the IAT sensor will modify the injector pulse width for any given set of input parameters (MAP, TPS, CT etc)
I found an ebay resistor supplier of make and model specific resistances so as to throw the PCM into a different area of the fuel map. (sorry for the awkward wording there) They claim an increase in HP. Does anyone know if the intent is to simulate a cooler denser charge to richen the mixture or a warmer flow to lean it out? I presume it's to lean it out. My suspicion is that this would be a temporary effect until the injector offsets accounted for the change in mixture detected by the O2 sensors. Anyone out there know anything concrete here? Here's the link. http://cgi.ebay.ca/20HP-Performance-...item35acb082f8 At second glance, perhaps the intention is to richen the mixture. Problems with emission testing? Again - a temporary effect once it runs in closed loop a few times? |
Doesn't work. Complete snake oil. The PCM will quickly adapt and basically start ignoring the IAT readings since they will conflict with more important sensor inputs.
|
Originally Posted by swartlkk
(Post 367196)
Doesn't work. Complete snake oil. The PCM will quickly adapt and basically start ignoring the IAT readings since they will conflict with more important sensor inputs.
It does kinda make me wanna sell $0.10 resistors on ebay for $4.00 a piece though!!!! lol I wonder how much this guy rakes in on these things.... |
All times are GMT -5. The time now is 03:31 PM. |
© 2024 MH Sub I, LLC dba Internet Brands