CNG Conversion Kits and Cylinders - How is it Installed?

Please read all our pages before ordering or asking questions!
All our prices and Cylinder Specifications are on our PRICES page.
We stock Conversion Kits for every engine, so do not ask us if we can provide a kit for your car.

Below are some pictures and installation information for the Mixer Type CNG Conversion Kit and Cylinders (Storage Tank).
Sequential kit pictures and details are coming soon.
The information below is just a brief overview of how to install the CNG conversion kit and cylinder and are not to be used as installation instructions.

  Watch Installation Video on youtube

Electronics EFI engines come with a Closed Loop Feedback Controller. The fuel injector emulators and wire harness is installed under the hood near the firewall. All kits come with a change-over switch and fuel indicator controller which is mounted in, on, or under the dash where the driver can see it.  A few wires are connected to the engine's wiring including the following:  Ground, 12 volts, 12 volt ignition, TPS signal, coil pulse signal, Oxygen sensor signal, and all fuel injectors.  All closed loop feedback controllers require you to connect to an oxygen sensor before the catalytic converter.  Do not connect to an air fuel ratio sensor as they look the same, but do not work the same.  Some newer engines have them installed before the catalytic converter.  If your engine does not have an oxygen sensor before the converter you will need to have one installed.  We have a oxygen sensor and bung for $35, or you can get a non heated universal oxygen sensor for under $20 at your local auto parts store.  A bung to install the sensor to can be installed at your local muffler shop for $50 to $100.  The instructions explain how to identify all the wires you need to connect to with many wiring tips "how to " information, and a trouble guide.  The Change-Over Switch and fuel indicator is mounted in the car where the fuel level is easily monitored and the fuel is easily switched with the push of a button by the driver when desired. We will provide the proper components for your vehicle when you order.  Our EFI kits come with the Closed Loop Feed-Back System, our Diesel Kit comes with the Basic Change Over Switch, and our Carburetor Kit comes with our Carburetor Change Over Switch and the Closed Loop Feed-Back Controller.  Your kit will come with the proper, fuel injector emulators, and wire harnesses for your engine.  The Millennium kits do not need fuel injector emulators so they are not included in the kit. The instructions below may not be current and do not include all the information that is provided with your kit.  This is to prevent other companies from coping our confidential information.  Click on the links below to view our instructions.  Click on your browser's back button to return to this page after viewing the links below. EWS EFI Mixer Kit Instructions EWS Software Instructions EWS Diesel Kit Instructions EWS Carburetor Kit Instructions Millenium Mixer Kit Instrutions Millennium Software Instructions	EWS Closed Loop Feedback System EWS Change Over Switch Millennium Controller and Change Over Switch CNG Stepper Motor Fuel Injector Emulator and Wire Harness
Regulator The regulator is installed under the hood near the engine.  A mounting kit is provided to install the regulator.  The high pressure tubing, and the low pressure hose are connected to the regulator.  Two small coolant hoses are connected to the regulator which are connected to the two coolant hoses which run to the heater core.  This is to keep the regulator warm and from freezing as the regulator gets cold as the pressure of the gas is reduced. Our 3 to 6 cylinder gasoline kits come with a standard regulator.  A high output regulator ugdrade is available.  All 8 to 10 cylinder kits come with a high output regulator for more power and better performance.  The high output regulator prevents the engine from running lean at high RPMs.
High Pressure Connections The high pressure tubing is routed from the cylinder to the filling nozzle and then to the regulator.  The filling nozzle is located where it is easily connected to the filling station nozzle.  A couple of holes may need to be drilled and the straps included will need to be installed to support the tubing and keep it secured and away from moving parts.  The tubing is connected with high pressure compression fittings. The tubing is 6 mm 3,000 psi carbon steel with a plastic coating for corrosion resistance.	Plastic Coated Steel High Pressure Tubing Fill Nozzle
Mixer Connection The custom sized mixer for your vehicle is installed at the intake of the throttle body.  A hose is connected from the regulator to the  mixer.  A stepper motor is connected to the hose to control the fuel ratio on our feed back Mixer kits.  The oxygen sensor, and TPS voltages are monitored to control the stepper motor which provides the proper fuel ratio at all times.	Plastic Mixers for EWS Conversion Kits Adjustable 2" to 4" Aluminum Mixers for Millennium Conversion Kits The top face is rotated to adjust the mixer as needed at installation. They are shown from fully closed to full open.
Cylinder Valve A cylinder valve is required but sold separately as some customers may have their own cylinder and valve.  The cylinder valve is available with 3/4" NPT.  The valve is threaded into the cylinder.  High pressure compression tubing adapters are threaded into the outlet ports. Do not use this valve on USA cylinders with strait no taper threads.
Cylinder Mounting The cylinder is secured with a mounting kit which is securely bolted to the vehicle.  Mounting hardware is not included with the purchase of some of our cylinders.  The cylinder is usually installed in the trunk of a car, behind the rear seat in a SUV or van, and in the bed of a truck.  Occasionally a vehicle may have room to install a cylinder under the vehicle.