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be expected with the Direct Port EFI System. Typical AFR Setpoint Values:
Idle: 13.2 to 13.8
Cruise: 13.8 to 14.5
WOT (Wide Open Throttle): 12.4 to 12.8
AFR S.P (Air Fuel Ratios Setpoint): Air Fuel Ratio setpoint is the Air Fuel Ratio in the tailpipe
read by the O2 sensor that the EFI system is working to maintain. This value is determined by the
Vacuum, RPM, Throttle position and Air Fuel Ratio Setpoints specified in the Advance Tuning menu
/ Air Fuel Ratio section of the E-Tuner App.
AFR Corr (Air Fuel Ratio Correction): This value is the percentage of fuel correction the ECU
is applying to maintain the Air Fuel Ratio in the tailpipe at the Air Fuel Ratio Target value. As the
vehicle is driven through various load and rpm conditions, the EFI system will apply and save fuel
calibration corrections and this value will decrease.
Injection: This value is the amount of time, displayed in milliseconds, that the fuel injectors are
open to release the correct amount of fuel to maintain a proper air fuel ratio under various load
conditions.
Injection Duty: Injection Duty Cycle is the percentage of time an Injector is open during one cycle
(2 revolutions) of the engine. As engine RPM increases, available injection time decreases. A value
of 100% indicates no further injection time is available. The injector is being held wide open all
the time.
Spark Advance: This value is the final calculated Spark Advance in degrees before TDC being
commanded by the ECU. This value and curve can be adjusted in the Advanced Tuning menu/
Spark Control section of the E-Tuner App. Ignition Control components must be used for this option
to function and display values relative to actual Spark Advance.
EDELBROCK E-TUNER SETUP WIZARD DEFINITIONS:
EFI System: Edelbrock's E-Tuner Android app can support both the Edelbrock E-Street 2 EFI
System and the Pro-Flo 3 EFI systems for V8 engines. All E-Street systems are referred to as a
Throttle Body Injection and the Pro-Flo 3 is considered Direct Port Injection.
Engine Displacement in Cubic Inches (CID): Also commonly referred to as the size of the
engine. The displacement figure represents the total air displaced by the pistons in all of an
engine's cylinders and is expressed in cubic inches. This value in the setup wizard helps select the
proper base map for the engine configuration.
Camshaft: The setup wizard can accept 3 different camshaft profile ranges. This covers stock,
mild, and race cams. The amount of lift and duration from the camshaft will determine how much
vacuum the engine will pull under various loads, and will affect how much fuel is required to run
the engine. If the incorrect camshaft is selected in the wizard, the engine may run very poorly.
Fuel System: A 48 or 58 psi fuel system must be installed to properly run the Pro-Flo 3 EFI
System. Any return-style fuel system or an Edelbrock Fuel Sump can be used. If an adjustable fuel
pressure regulator is used, it must be set to 48 or 58 psi. On the E-Tuner Setup Wizard, return-style
and sumps at 48 or 58 psi are each considered as the same option.
Injectors: Pro-Flo 3 can support 3 Fuel Injector options: 29, 35, 60 lb/hr. The selected option must
match the injector rating included with the Pro-Flo 3 kit. The Setup Wizard will display all available
options based on the engine displacement and camshaft profile. For most applications, the 35 lb/
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