EFIE's for HHO Kits (Electronic Fuel Injection Enhancer) Use With O2 Sensors

WHICH ONE DO I NEED?

That's a good question, as the needs vary with each car, but here is a general rule of thumb: Less than 4 wires into them they're narrow band (Dipped or Quad Efie), 5-6 wires definitely Wide Band (Wide Band Efie), 4 wires can be either way and should be checked with meter.

To see how and get more details- download my free book on O2 Sensors and learn everything you need to know..

MILEAGE CHIP- If your car is 1996 or newer, you may consider using our new mileage chip which is even better, easier to hook up and adjust!

Single EFIE Basic (Dipped)

Retail: $69.95  SALE: $59.95

If your budget is tight, but you know you need an EFIE, this Single EFIE for cars with just one O2 sensor has the same guts as the deluxe without the added protection of a case and switch. There is still access to adjust voltage manually but meter has to be attached externally to wires. Good budget based Single EFIE works with all hho kits and hydrogen based generators. For use with ONE O2 sensor.

Dual EFIE Basic (Dipped)

Retail: $89.95  SALE: $79.95

If your budget is tight, but you know you need an EFIE, this DUAL EFIE has the same guts as the deluxe without the added protection of a case and switch. There is still access to adjust voltage manually but meter has to be attached externally to wires. Good budget based Dual EFIE works with all hho kits and hydrogen based generators. For use with up to TWO O2 sensors.

DIGITAL QUAD EFIE - BRAND NEW IN STOCK NOW! Works for 90% of all vehicles!

Retail: $114.95  SALE: $104.95

Why a QUAD? Because despite earlier reports that the downstream sensors don't matter, there have been increasing reports on the forums and in our experience that they do! SO if you have had trouble with your car getting the increase it should be getting, think about upgrading to a digital narrow band quad EFIE and treat those back O2 sensors for the same price as just 2 front ones in the old style efie's.

The Quad Digital EFIE allows much leaner settings on vehicles than other older types of EFIE's which are analog. We are now recommending Digital EFIEs for all narrow band oxygen sensors that are upstream of the catalytic converter. (Note: The Quad EFIE uses a pair of analog EFIEs for the downstream sensors)

Digital EFIEs have the following benefits: Can make the air/fuel mix much leaner than earlier designs. With this device you can lug down your engine, and often kill it if you set it too lean. Absolutely rock steady adjustment no matter what temperature the environment.

Will work with older, "tired" oxygen sensors that should have been replaced. One adjustment pot modifies both upstream (Digital) EFIEs equally, and similarly, one pot adjusts both downstream (Analog) EFIEs. This makes these devices easier to set.

NEW WIDE BAND EFIE- FOR WIDEBAND SENSORS

Retail: $89.95  SALE: $79.95

JUST RELEASED from our manufacturer in January of 2009, this is an answer to a major problem for some vehicles. Many late model Toyotas, Mazdas and others are starting to change over to the Wide Band O2 sensors for more accurate readings, which has been bad for alternative fuel enthusiasts.

The Narrow Band EFIE's do NOT work on variable or wide band O2 sensors. Until now, no other solution has worked, but we have the answer for you now! These are actually easier to adjust than the narrow band EFIE's with only one turn of a screw for both sensors.

If you are unsure - contact us at support@hhokitsdirect.com

WHY DO YOU NEED ONE?

Generally, You only need one if your car was built in 1996 or NEWER,
though a few cars had a single O2 sensor as far back as 1989. If you
have fuel injection INSTEAD of a carburetor, you will need an EFIE or
a MILEAGE CHIP to get the best results.

The O2 Sensors are the most important things to deal with when you
have an HHO kit or any hydrogen generator. The extra Oxygen
produced by electrolysis will fool your vehicle computer into thinking
the car is not burning enough fuel, so it will compensate by Adding
fuel, lowering your mileage which defeats the purpose of HHO gas.
You have to have a mini-computer like this to "Teach" your car's
computer how to recognize a Hybrid Fuel like Hydrogen or HHO Gas.