Z-Fi Fuel Controller

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The Z-Fi fuel controller is race-level fuel injector tuning.

Benefits
'Wakes up' performance
Crisp and responsive throttle
Smooths out throttle transitions
HP and torque gains

How it Works
Power is dependent on how well the air / fuel mixture is ignited in the cylinder.
Air / fuel ratio (AFR) is controlled by the engine control unit (ECU).
Bazzaz fuel controllers piggy back onto the Engine Control Unit (ECU), intercepting the signal sent to the fuel injectors and changing it.
The precise data for these changes is stored in the Z-Fi fuel controller in the form of a fuel map.
The Z-Fi comes pre-programmed with an enhanced fuel map for power gains and improved throttle response.

Who needs it?
Every vehicle can benefit from fuel tuning.
Stock vehicles may come with a fuel / air mixture that is too lean or too rich in areas, affecting performance.
Vehicles with any modifications (such as exhaust or high-flow filters) must have fuel tuned to accommodate the change in air to the AFR.

Take it to the next level

Access the free Bazzaz Z-Mapper software to view and easily adjust fuel maps.

Load and save fuel maps that are downloaded, manually edited, created on a dyno, or made with the Z-AFM air / fuel self mapper.

Switch fuel maps on the fly with the handlebar-mounted Map Select Switch

To our customers and dealers,

The Bazzaz team would like to thank you for the many years of support and loyalty to our products.

As of 1/1/22 Bazzaz will no longer offer support for the Bazzaz engine management line (Z-Fi, Z-Fi TC, QS4, ZAFM).

Although YFI racing will not be offering technical support for Bazzaz products except for customers who purchased directly from YFI Racing, many QS4 kits, accessories, and spare parts will be available through them. www.yfi-racing.com.

You can also contact YFI Racing at sales@yfi-racing.com if you do not find what you are looking for on their site.

The Bazzaz website will remain to offer customers access to installation instructions, fuel map database, and technical support documents. The technical support documents utilize the same diagnosis steps that the Bazzaz technical support team has worked from since the beginning so they should be very helpful.

The Big Three: double-check these three common culprits:

  1. The Bazzaz ground lug is properly secured to a non-insulating chassis ground. Test this by temporarily grounding the Bazzaz ground lug directly to the battery negative terminal and checking to see if this resolves the issue.
  2. The vehicle has fuel and there are no obstructions (such as a fuel line kink) that could affect fuel delivery.
  3. The Bazzaz control unit powers up. Turn the key on and the control unit should illuminate blue. If it does not, re-check the 12V power source connection

Bazzaz tuning software and software manual
https://bazzaz.net/software/software-overview/

Principia dyno software and software manual
https://bazzaz.net/software/principia-software-side/

Fuel map database
https://bazzaz.net/fuel-map-database/

Engine management wire color guide
https://bazzaz.net/wp-content/uploads/2018/11/kb-bazzaz-wiring-diagram-1.pdf

Not starting or running properly
https://bazzaz.net/wp-content/uploads/2018/11/not_starting-2.pdf

Quick shifter troubleshooting
https://bazzaz.net/wp-content/uploads/2018/11/QS_Cutting_Out.pdf

Software troubleshooting
https://bazzaz.net/wp-content/uploads/2018/11/Z-Mapper-software-troubleshooting-1.pdf

Traction control settings
https://bazzaz.net/wp-content/uploads/2018/11/kb-bazzaz-traction-control-supplement-1.pdf

Traction control troubleshooting
https://bazzaz.net/wp-content/uploads/2018/11/tc_trouble_shoot-2.pdf

ZAFM troubleshooting
https://bazzaz.net/wp-content/uploads/2018/11/zafm_flow_chart-2.pdf

ZAFM O2 sensor installation
https://bazzaz.net/wp-content/uploads/2018/11/O2sensor-data-sheet-2.pdf

Z Bomb integration
https://bazzaz.net/wp-content/uploads/2018/11/kb-bazzaz-z-bomb-integration-1.pdf

Best regards,
Bazzaz team

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