Speed Density MAT
#17
"SD Option: IAT Input for MAT - Use 0x03, Fuel Temp ADC_0E for MAT - Use 0x0E"
That must be the only pointer needed to use ADC_0E (Fuel Temp ADC) in place of ADC_03 (IAT ADC). I assume it just changes the RAM look up from one ADC to the other and the RAM Address typically used for IAT is still used through out the entire ECU?
That must be the only pointer needed to use ADC_0E (Fuel Temp ADC) in place of ADC_03 (IAT ADC). I assume it just changes the RAM look up from one ADC to the other and the RAM Address typically used for IAT is still used through out the entire ECU?
#21
Evolved Member
iTrader: (2)
But, from what I remember from way back when, if using the fuel temp adc, then the mat patch is required, which uses it's own mat scaling table, etc.
Are you saying that isn't true now? We just point the option to fuel temp adc, don't apply the mat patch, and just use the SD IAT scaling table?
#23
EvoM Guru
iTrader: (50)
Yes, I know that. I haven't even looked at the XMLs provided for the 96531706 ROM as I have had my XMLs all set for a while. I'm well aware of the option of using either the fuel temp adc or maf iat adc.
But, from what I remember from way back when, if using the fuel temp adc, then the mat patch is required, which uses it's own mat scaling table, etc.
Are you saying that isn't true now? We just point the option to fuel temp adc, don't apply the mat patch, and just use the SD IAT scaling table?
But, from what I remember from way back when, if using the fuel temp adc, then the mat patch is required, which uses it's own mat scaling table, etc.
Are you saying that isn't true now? We just point the option to fuel temp adc, don't apply the mat patch, and just use the SD IAT scaling table?
#25
Evolved Member
iTrader: (11)
So just to clarify, If I take my GM Air Temp Sensor and wire it to the ecu input for fuel temp all i need to do is place the correct values in the field that says "SD IAT ADC Scaling (Insert MAT Sensor Scaling) under the Speed Density Programming Section? I dont need to worry about the field under MAT that says MAT Scaling?
#26
EvoM Guru
iTrader: (50)
So just to clarify, If I take my GM Air Temp Sensor and wire it to the ecu input for fuel temp all i need to do is place the correct values in the field that says "SD IAT ADC Scaling (Insert MAT Sensor Scaling) under the Speed Density Programming Section? I dont need to worry about the field under MAT that says MAT Scaling?