DC2000 – Installation Manual 20
HHO Plus, Alternative Energies, Lta – Travessa das Serras 33, Vieira de Leiria, Portugal – Tel. 00351244697116 – Email: info@hhhoplusgas.com
Electronic fuel injection
Basic Information
When adding a HHO gas to the engine of an old car, we will see immediate economies in fuel consumption.
However, this is not the case for some modern electronic fuel injected vehicles equipped with an engine
control unit (ECU), because the fuel burned inside the cylinders has significantly improved, but the sensors
continue expecting the same amount of unburned oxygen to come out of the exhaust of the engine.
This causes a signal to be fed back to the ECU, that after will give orders to inject more fuel increasing the
air/fuel mixture (Richer), which will counter act the fuel gains you may be expecting.
So we need to make some changes according to the cars*
. The different possibilities are:
1.1 Petrol Engines – Carburetor (before 1992)
Fuel savings: 30 – 45%
Requirements: Right amount of HHO inside the engine. Tune the carburetor.
1.2 Petrol Engines – Electronic Injection (1992-2001)
Fuel savings: 20 – 30%
Requirements: Right amount of HHO inside the engine. Reset the ECU. Install the lambda sensor extender.
Isolate the body of the lambda sensors;
Optional: MAF/MAP Sensor Enhancer to increase fuel savings
1.3. Petrol Engines – Electronic Injection (2001-2012)
Option 1
Fuel savings: 20 – 30%
Requirements: Right amount of HHO inside the engine. Reset the ECU. Install the lambda sensor extender.
Isolate the body of the lambda sensors;
Optional: MAF/MAP Sensor Enhancer to increase fuel savings
Option 2
Fuel savings: 25 – 35%
Requirements: Right amount of HHO inside the engine. Reset the ECU. Install the HEC Chip
2.1. Diesel Engines – Mechanic Pump (before 1998)
Fuel savings: 20 – 35%
Requirements: Right amount of HHO inside the engine. Tune the injection rate of the fuel pump.
The dates can change according to each country and manufacturers.
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