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.

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: 16d 5h 27m
Buy It Now for only: $69.99

DIGITAL MAF MAP SENSOR EFIE ENHANCER w/ IN DASH REMOTE 5 Volt HHO CHIP ADJUSTER
DIGITAL MAF MAP SENSOR EFIE ENHANCER w/ IN DASH REMOTE 5 Volt HHO CHIP ADJUSTER $69.99
Time Remaining: 16d 5h 27m
Buy It Now for only: $69.99

DIGITAL EFIE 5-wire WIDEBAND O2 OXYGEN SENSOR ENHANCER ADJUSTER HHO CHIP
DIGITAL EFIE 5-wire WIDEBAND O2 OXYGEN SENSOR ENHANCER ADJUSTER HHO CHIP $79.99
Time Remaining: 16d 5h 27m
Buy It Now for only: $79.99

DIGITAL MAF MAP SENSOR EFIE ENHANCER w/ IN DASH REMOTE 12 Volt HHO CHIP ADJUSTER
DIGITAL MAF MAP SENSOR EFIE ENHANCER w/ IN DASH REMOTE 12 Volt HHO CHIP ADJUSTER $82.99
Time Remaining: 16d 5h 27m
Buy It Now for only: $82.99

AMP GAUGE 50A 12 VOLT HHO / EFIE /30A PWM.
AMP GAUGE 50A  12 VOLT  HHO  / EFIE /30A  PWM. $8.45
Time Remaining: 12d 14h 14m
Buy It Now for only: $8.45

HHO BUBBLER / RESEVOIR / EFIE /30A PWM.
HHO BUBBLER /  RESEVOIR  /    EFIE /30A  PWM. $26.08
Time Remaining: 10d 14h 14m
Buy It Now for only: $26.08

VOLO PERFORMANCE EFIE FS2 HHO EDITION FUEL SAVER CHIP.OBDII REPROGRAMMABLE
VOLO PERFORMANCE EFIE FS2 HHO EDITION FUEL SAVER CHIP.OBDII REPROGRAMMABLE $69.90
Time Remaining: 9d 16h 30m
Buy It Now for only: $69.90

MAX STRENGTH ELECTROLYTE HHO-HYDROGEN GENERATORS DRY CELL KIT EFIE CC PWM
MAX STRENGTH ELECTROLYTE HHO-HYDROGEN GENERATORS DRY CELL KIT EFIE CC PWM $14.95
Time Remaining: 2d 5h 41m
Buy It Now for only: $14.95

HHO EFIE Computer Chip Fuel Saver MAP IAT CTS Wide narrow band oxygen sensor
HHO EFIE Computer Chip Fuel Saver MAP IAT CTS Wide narrow band oxygen sensor $45.00
Time Remaining: 5h 58m
Buy It Now for only: $45.00

HHO Computer Chip Fuel Saver Efie enhancer
HHO Computer Chip  Fuel Saver Efie enhancer $93.10
Time Remaining: 24d 13h 27m
Buy It Now for only: $93.10



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