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as specified in the instructions manual is installed to ensure the engine meets this operating
temperature. An improper thermostat will prolong warm up times and cause poor performance
and fuel mileage.
Recommended Self-Learning Drive Cycles:
The following is a guideline to driving procedures that helps assist the self-learning function of the
Pro-Flo 3 EFI system. Please note that there is never really a time when the self-learn function
is actually complete. The system is always adjusting for various weather, road load and engine
functions that may affect engine performance. A good indication of self-learn progress is the
amount of AFR Corr % being applied under various driving conditions. As the self-learn progresses
AFR Corr % should reduce to values near 0%. In order for the self-learn function to actually correct
a specific load point the engine must actually drive through that specific point.
The best procedure for assisting self-learn is to first verify that all functions of the EFI System are
properly installed and functioning correctly.
Warm the vehicle to operating temperature and verify that both the O2 Learn and Closed Loop
indicators are lit. Drive the vehicle in an ordinary manner and observe the AFR Corr % values. If at
any point the vehicle does not run accordingly, observe the AFR Corr % values. If the value exceeds
10%, try holding the Throttle steady so the Vacuum and RPM remain steady at the point of issue.
The AFR Corr % value should reduce and the engine should begin to run better. Try to revisit the
Vacuum and RPM points around the point of issue to help compensate. Try to avoid fast erratic
throttle movement when assisting self-learn.
Continue driving the vehicle, when road conditions safely permit try running the engine through
various load and RPM points. For example:
• Steady Highway driving consistently varying throttle and RPM.
• Low gear light slow acceleration from low to high RPM.
• High gear light acceleration from low to high RPM.
• High gear slow steep hill acceleration.
• Hard acceleration from low to high RPM.
Note: Do not make any adjustment to the Acceleration Fuel initially. Allow the self-learn adequate
time to apply corrections to the base calibration prior to making any Acceleration Fuel adjustments.
WARNING: WOT conditions must be performed on a closed track in a controlled environment.
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