8.3 Data log fields 8 TROUBLESHOOTING AND DATA LOGGING
• EGO cor 1-8: The percentage fuel correction from AFR1-8 when closed-loop EGO control is used (100%
means no change.)
• EgoV 1 Target: The current target value for EGO voltage (1,2), looked up from the active target table when
using a narrow band O
2
sensor.
• EgoV 1 Error: The difference between actual and target EGO voltage.
• EGT 1-16: The reading from an external EGT sensor.
• Engine: “Engine” is a single status field with many basic information items. See the notes on bit fields for
how to interpret these numbers.
128 64 32 16 8 4 2 1
MAP decel
fuel cut
MAP accel
enrichment
TPS decel
fuel cut
TPS accel
enrichment
Warmup
enrichment
Afterstart
enrichment
Cranking Ready
(RPM or
fuel pump
on)
• Ethanol Percentage: The calculated ethanol percentage in the fuel reported from the flex fuel sensor.
• Fuel: Air cor: The percentage multiplier to fueling due to air density.
• Fuel: Accel enrich: The current fuel pulsewidth percentage multiplier due to acceleration enrichment.
• Fuel: Accel PW: The current fuel pulsewidth (time) adder due to acceleration enrichment.
• Fuel: Baro cor: The percentage multiplier to fueling due to barometric correction.
• Fuel: Total cor: The total fuel percentage multiplier obtained by multiplying the other factors. If this is outside
of the range 80%- 120% then there is likely something wrong with your tuning settings unless you are running
in extremely cold weather or very high altitude.
• Fuel: Warmup cor: The percentage multiplier to fueling due to Warmup and Afterstart. Once the engine is
fully warmed up, this should be 100%.
• Fuel flow cc/min: Calculated averaged fuel flow.
• Fuel Pressure1_xxx: Primary differential fuel pressure in bar, kPa or bar. This is the differential fuel pressure
above intake manifold pressure.
• Fuel Pressure2_xxx: Secondary differential fuel pressure in bar, kPa or bar. This is the differential fuel
pressure above intake manifold pressure.
• Fuel pump control duty: The output duty cycle to control the fuel pump, if using variable speed fuel pump
control.
• Fuel Temp 1,2: Fuel temperature. 1 = primary fuel, 2 = secondary fuel if using dual fuel mode.
• Fuel temperature cor: Correction to fuel due to fuel temperature.
• Fuel pressure cor: Correction to fuel due to fuel pressure.
• Gear: The current transmission gear.
• Generic Closed-Loop A,B duty: Output duty cycle from Generic Closed-Loop system.
• GPS Altitude: Altitude in meters from external GPS. The GPS device is normally plugged into the laptop
doing the data logging, not the MS3Pro.
• GPS Course: The course/heading from external GPS.
• GPS Latitude: Latitude degrees from external GPS. (Combination of degrees, minutes, seconds as one
decimal number.)
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 286
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