EFIE known as Electronic Fuel Injection Enhancers are used to help regulate or adjust the voltage on an oxygen sensor. Most of these dual EFIE circuits or EFIE circuits are to be purchased for water4gas plans or other comparable HHO plans. This module or circuit is usually added between the oxygen sensor and ECU or electronic control unit. This circuit is often added on some vehicles because when an HHO kit is installed the exhaust is so clean that the voltage produced by the O2 sensor can cause the computer to compensate by adding more gasoline to the mix thus reducing gas mileage. An HHO EFIE circuit adjuster is used to aid in this situation. Buy a EFIE Kit to ensure you hydrogen HHO generator system is working at peak efficiency.

Wideband Quad EFIE HHO Oxygen Sensor Enhancer
Wideband Quad EFIE HHO Oxygen Sensor Enhancer $70.00
Time Remaining: 8d 22h 7m
Buy It Now for only: $70.00

HHO Map Enhancer EFIE Map MAF MINI enhancer
HHO Map Enhancer EFIE Map MAF MINI enhancer $12.50
Time Remaining: 24d 12h 26m
Buy It Now for only: $12.50

MAP MAF Sensor Enhancer HHO EFIE module DUAL MODE
MAP MAF Sensor Enhancer HHO EFIE module DUAL MODE $65.00
Time Remaining: 29d 15h 18m
Buy It Now for only: $65.00

" TWO "-HHO-HYDROGEN-DRY-CELL-GENERATORS-MODEL 4.5 DIY KIT-EFIE-CC PWM Available
$119.95
Time Remaining: 26d 17h 52m
Buy It Now for only: $119.95

" 2 "-HHO-HYDROGEN-DRY-CELL-GENERATORS-MODEL 4.5 DIY KIT-EFIE-CC PWM Available
$119.95
Time Remaining: 26d 14h 52m
Buy It Now for only: $119.95

DUAL-HHO-HYDROGEN-DRY-CELL-GENERATORS-MODEL 4.5 DIY KIT-EFIE-CC PWM Available
DUAL-HHO-HYDROGEN-DRY-CELL-GENERATORS-MODEL 4.5 DIY KIT-EFIE-CC PWM Available $119.95
Time Remaining: 26d 12h 52m
Buy It Now for only: $119.95

TWIN-HHO-HYDROGEN-DRY-CELL-GENERATORS-MODEL 4.5 DIY KIT-EFIE-CC PWM Available
TWIN-HHO-HYDROGEN-DRY-CELL-GENERATORS-MODEL 4.5 DIY KIT-EFIE-CC PWM Available $119.95
Time Remaining: 26d 10h 52m
Buy It Now for only: $119.95

HHO ELECTRONICS FLASH CHIP SAVE FUEL GAS MPG EFIE MAP
HHO ELECTRONICS FLASH CHIP SAVE FUEL GAS MPG EFIE MAP $102.45
Time Remaining: 7d 16h 45m
Buy It Now for only: $102.45

HHO Computer Chip Fuel Saver Efie enhancer
HHO Computer Chip  Fuel Saver Efie enhancer $85.50
Time Remaining: 14d 6h 33m
Buy It Now for only: $85.50

DIGITAL EFIE 1..4-wire O2 OXYGEN SENSOR ENHANCER ADJUSTER HHO CHIP water4gas
DIGITAL EFIE 1..4-wire O2 OXYGEN SENSOR ENHANCER ADJUSTER HHO CHIP water4gas $69.99
Time Remaining: 7d 19h 39m
Buy It Now for only: $69.99

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