E4E-Z INSTALLATION GUIDE

Perfect Power Online Manuals.

 

Support for your E4E-Z Unit.

OPERATING THE UNIT

The E4E_Z unit has two principal operating modes:

 

 

MANUAL FUEL ADJUST

 

This mode is activated whenever the UP or DOWN switch input is activated. This will increase or decrease the Ethanol addition in the range 0-30% in steps of 2%. The Manual mode is terminated, and the automatic mode started if the unit sees:

An in range Load input AND a correct AFR input

 

 

AUTOMATIC FUEL ADJUST

 

This mode is activated when the unit sees:

 

  • An in range Load input
  • A correct AFR input


If any of the Load or AFR inputs remain faulty for mode than 2 minutes, then the entered “DEFAULT E85% Addition” is invoked. This is a precaution for a bad sensor connection or a faulty AFR sensor.

 

 

SUMMARY OF MODE SWITCHING

 

The unit is shipped in automatic mode, with the DEFAULT fuel addition of 20%. It is then waiting to find a good LOAD and AFR connection, and it will adjust the fuel. If the connections remain faulty it will stay in this mode and add fuel of 20%.


If a push button or switch input is detected the unit switches in to manual mode and the fuel addition can be adjusted manually. The manual mode is terminated when the unit finds a good LOAD and AFR connection.