PID | Variable | Comment
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XTALHPS | ECU Clock Speed | Most important variable in the ecu, this must match your ecu's actual clock speed and is dependent upon your specific ecu.
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AC_RLY_IS_NC | A/C Relay State | 0=normally open, 1=normally closed | Most 99-01 GTs will be set to 0, some cobras 1 including some crown vics and trucks
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CHT_SNS_HP | Cylinder Head Temp Sensor Present | set to 1 for crown vic and trucks that have a CHT sensor, be sure to set ECT_SNS_HP to 0
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PATS_DISABLE | Pats Disable | should be set to 0 to re-enable PATS once you've copied your PATS code over.
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OSS_PULSE_REV | OSS Teeth | should be set to 12 for 5spd transmissions, 6 for most 1999-2003 4r70w trans
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PFE_HP | EGR Present | set to 0 DPFE or 1 SONIC to enable EGR if you have one present. 2 disables the EGR.
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NLMTHI_0 | Neutral Rev Limiter 0 |
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KNK_SENSOR_HP / KIHP / KNK_SNSRS | Knock Sensors Present | set to the number of knock sensors you have present
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K-CONSTANT | GLOBAL FUEL MULTIPLIER | This should ALWAYS be set to 30.00 lbs/hr.
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SP** AHISL | Injector High Slope | Input your injector's manufacturer's data.
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SP** ALOSL | Injector Low Slope | Input your injector's manufacturer's data.
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SP** Fuel_BKPT | Injector Breakpoint | Input the injector manufacturer's data.
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FN 367W | Injector Offset | Input the manufacturer's recommended voltage offset values.
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FNPWCOM_HS | DeltaP High Slope Multiplier | input your inj manufacturers recommended multiplier values
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FNPWCOM_LS | DeltaP Low Slope Multiplier | input your inj manufacturers recommended multiplier values
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FNPWCOM_BK | DeltaP Breakpoint Multiplier | input your inj manufacturers recommended multiplier values
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FNPWCOM_OFS | DeltaP Offset Multiplier | input your inj manufacturers recommended multiplier values
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SP** SARCHG | Cubic Inch Displacement | Input your actual engine size.
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SP** FN 036 | MAF Transfer | Input your actual MAF flow data from your flow sheet or published data to begin tuning.
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FNRF_SSFF | Fuel Pump Voltage Table | input your fuel pump manufacturers recommended values.
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FN 2200 | Borderline Knock Table | See note below. Populate this table with adequate values for your specific engine combination.
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FN 035 | Load Scaling | Populate the Y-axis with your engines expected peak N/A load values (when not in boost), DO NOT PUT IN MAXIMUM LOAD VALUES WHILE IN BOOST
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FN 1036B | Inferred Load | Populate this table with your engines expected Load at various TPREL and RPM conditions. This table will directly affect the engines driveability and must be dialed in using the histogram.
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XXX | Crank PW | Dependent upon strategy. FN052C Cranking Load in newer strategies and FN348 Cranking PW in older strategies.
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AXLE_RATIO_I | ABS Module Axle Ratio Integer | set to integer rear axle ratio your abs module is programmed for.
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AXLE_RATIO_F | ABS Module Axle Ratio Fractional | set to the fractional rear axle ratio your abs module is programmed for.
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RT_AXLE | Rear End Axle Ratio | typically 3.27 stock, some OEM 3.55s and 3.73s on trucks and performance vehicles.
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TIRE_REV | Tire Revs per Mile | should be dialed in to make your speedometer 100% accurate.
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Note: