FUEL TABLES Tab
Current Table
Use the Current Table drop down to display the fuel table to be tuned. When logging is active,
the current table is selected and displayed automatically based on the current load source.
MAF Load Calculation
MAF Load is calculated by multiplying
MAF LOAD FACTOR times
Q from MAF VQ Table and dividing by RPM.
MAF load scale values are MAF Load divided by 256.
MAF Fuel Table TIF Calculation
Fuel Table TIF is calculated by multiplying the Fuel Map Value by the
MAF FACTOR.
MAF Total Fuel Factor (TIF) Calculation
Total Fuel Factor is the sum of Fuel Table TIF +
ECT Trim +
Post Start Trim +
Accel dTPS Trim +
Knock Trim.
If Decel dTPS is active, Decel dTPS Trim is subtracted.
MAF Injector Pulse Width (IPW) Calculation
Injector PW is calculated by multiplying the MAF Load times the
Total Fuel Factor.
O2 Trim is then applied.
If Nitrous Active is set,
Nitrous Trim is applied.
If Anti Lag is enabled and active,
Anti-Lag Fuel Comp is applied.
If Flex Fuel is enabled,
Flex Fuel Fuel Trim is applied.
Finally, Injector Size Factor is applied.
MAP Load Fuel Calculations
MAP Load is the pressure reading from the MAP sensor.
MAP Base IPW Calculation
Base IPW is calculated by multiplying the Fuel Map Value by the
SD FACTOR.
MAP Total Fuel Factor (TIF) Calculation
Total Fuel Factor is the sum of 4096 +
IAT Trim +
ECT Trim +
Post Start Trim +
Accel dTPS Trim +
Knock Trim.
If Decel dTPS is active,
Decel dTPS Trim is subtracted.
MAP Injector Pulse Width (IPW) Calculation
Injector PW is calculated by multiplying Base IPW times the Total Fuel Factor.
O2 Trim is then applied.
Boost Trim is then applied.
If Nitrous Active is set,
Nitrous Trim is applied.
If Anti Lag is enabled and active,
Anti-Lag Fuel Comp is applied.
If Flex Fuel is enabled,
Flex Fuel Fuel Trim is applied.
If load source is TPS,
BARO Trim is applied.
Finally, Injector Size Factor is applied.
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