Quote:
Originally Posted by cfg83
Mario_Marques -
Sorry. My english is messy. The first two runs use different resistors :
Run 1 = Resistor #1 => IAT @ 200 degrees F => 57.07 MPG
Run 2 = Resistor #2 => IAT @ 247 degrees F => 62.93 MPG
The last run is my HAI with normal IAT sensor :
Run 3 = normal IAT sensor => IAT @ 132 degrees F => 55.03 MPG
All MPG numbers are from the scangauge.
Hmmmm. I do not think all things that work for diesel work for gas. But you know more than me. I am saying what I have learned on these forums. I am not a heavy-duty car guy.
Also, I do not have software to test the lambda values. I can datalog all OBD-II parameters, so I can make a test where I save the IGN (ignition timing) value to see if it changes.
I definitely think the IAT resistor mod will work when the engine is cold, because that is when the ECU/PCM is in open-loop mode.
CarloSW2
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So, resuming, the trick is not the hot air right?
But sending "hot air information" to the ecu right?
So, you still could use cold air and trick the iat sensor, you could build a controller(potentiometer), in the interior of the car and controll the entire situation, if you do that, is better for your engine(cold air is healthier than hot air), and sttill have nice mpg
Yes, diesel is different, but the importante thing here is not the fuel but the engine management way of work(some cars are different, i have 5 cars and they all have different management even my diesel cars use different ways to calc the injection) that's why i ask you if you have some software to check the engine at realtime and see what changes, specially in this forum, your cars are quite different than european cars.