Wide Band EFIE Enhancer

If you've been getting the runaround about adjusting your oxygen sensor, it's probably because you have a Wide Band sensor, and until recently there were no EFIE's that worked with them.

Finally, there is a fully tested product that works with all wide band oxygen sensors and AFR (Air Fuel Ratio) sensors. This unit is the EFIE of choice for the 4-wire, the 5-wire AND the 6-wire variation.

These sensors are very typical on late model Toyotas and other vehicles.

This listing is for the dual configuration. This means this device will control up to two wide band oxygen sensors. For vehicles with single wide band oxygen sensors, simply idsregard the second pair of wires.

This model comes in a mountable box, and is encased in protective plastic. The wiring is 18 gauge, with quick disconnects that can unplug from the device for easy installation. It has one potentiometer that controls the air fuel ratio adjustment for both sensors.

An LED shows when the unit is powered up. By using the included rubber cap to cover the potentiometer, the unit becomes waterproof.
Please note this unit will NOT work with narrow band sensors. For these, you must use any of our other EFIE product lines, such as the Dual EFIE Deluxe.

This unit is ready to install.

Designed for up to 40 amp draws, It's rugged and it delivers. But most importantly, you don't have to monitor your HHO generators current use all the time.

It comes preset to 15 amps but is adjustable from there. It uses an externally mounted cooling fan and is cased in a heavy duty aluminun box. You can plug and play the unit, or open it to fully adjust duty cycle as well as frequency.

PWMs are an upgrade to the standard HHO configurations.

About the Manufacturer

Hydroset HHO is a manufacturer of electronic accessories for the HHO industry. Their products are easy to use and are hand-assembled by electronic technicians with over 20 years experience on average.

The PWM unit is shipped with instructions and detailed diagrams.

Frequency rate is 1KHz to 10KHz.
Max RMS current is approximately 40 amps.

As the cell heats up, peak current will rise, but the duty cycle will fold back an equal amount to keep the RMS current constant.

This unit is ready to install per the provided instructions.

The Benefits of Digital

The EFIE Max has a number of important new features.

Primarily, the new units can make the air/fuel mix much leaner than earlier designs. Although we do not recommend over-leaning your mixture, the operating range of this device is very wide. At the high end settings, the engine can be made to stall entirely.

More importantly, it provides rock steady adjustment settings no matter the temperature of the environment. It varies less than 1/2 of 1% over it's rated temperature range of -40 to 125 Centigrade. Now that's steady.

It also works with older, "tired" oxygen sensors that should have been replaced. Mind you, if they are old, they should still be replaced, but if they are working prior to your EFIE install, they will still work with this EFIE.

And finally, tne adjustment knobs modify and adjust both the sensors equally making it much easier to set.

This is truly the next generation in EFIE technology!

This unit is ready to install. Please research the location and color of your sensor 'signal' wire to make installation easier.