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IAT TRIMS AND MODELLED FUEL MODE


R24
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Hi, In the modelled fuel mood, the iat fuel correction is not used due to ecu uses the gas law calculation hence using the charge temp table. Do i need to turn off the iat ignition trim table too? I noticed it was turned on.

Regards,

Ragu

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On 9/22/2018 at 9:39 AM, Adamw said:

The charge temp table is used to calculate air mass for the fuel equation.  You would usually still want/need the IAT ignition trim table active - at least in a knock limited turbo car.

Thanks Adam. I have emailed you my logs and pclr. There are few things I need clarification on the settings. Is it normal to enter -ve values in the cells lower than 100°C? Mine was set with -ve values starting from 40°C. 

20180924_013324.jpg

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13 hours ago, R24 said:

Is it normal to enter -ve values in the cells lower than 100°C? Mine was set with -ve values starting from 40°C. 

It would be normal to have negative values for temperatures above whatever temperature was present when the ignition table was mapped.  

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