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VHP Air-Fuel Ratio (AFR2) Upgrade

Built to Work
VHP Air-Fuel Ratio (AFR2) Upgrade

  • Emissions
  • Flexibility

The next generation of Waukesha’s rich burn air-fuel ratio control (AFR2) integrates with ESM* for unmatched emissions performance.

It utilizes a fuel control valve between each regulator and carburetor and includes a wide band pre-catalyst O2 sensor calibrated for a wide variety of gaseous fuels for more stable operation through fuel swings. AFR2 has been designed and enhanced for Waukesha’s product line, enabling better and improved out of the box performance.

VHP Air-Fuel Ratio (AFR2) Upgrade

What can this upgrade do for you?

  • Intuitive Human Machine Interface (HMI) touchscreen simplifies operator adjustments by eliminating tedious lambda and O2 sensor voltage calculations. Initial setup in five simple steps directed by HMI.
  • Keep emissions minimized without manual intervention with automatic response to changes in load, speed, fuel, and ambient conditions.
  • Fuel control valve reduces shutdowns from delayed system response by providing fast response to changes in ambient and operating conditions.
  • Redesigned harness reduces downtime from potential harness failure by simplifying fault troubleshooting and maintenance.
  • Up to twice the O2 sensor life of legacy systems. 
  • New HMI allows seamless integration and logging of ESM and AFR2 data and fault codes.

VHP Air-Fuel Ratio (AFR2) Upgrade - 1

Make sure this upgrade is compatible with your engine:

How we get you there?

Kit includes: 

  • New wiring harnesses using new serviceable connectors (see harness fact sheet)
  • New gas regulator(s) if applicable
  • New wideband O2 sensor(s)
  • New ambient temperature/humidity/barometric pressure sensor package
  • New fuel control valve(s) replace stepper motors
  • New HMI to replace previous ESM display panel
  • Allows easy future upgrade to the emPact system if desired
  • Includes new single fuel inlet piping for Extender Series engines
  • Includes differential pressure wastegate system

VHP Air-Fuel Ratio (AFR2) Upgrade - 2

Applicability

AFR2 upgrade (for engines with ESM)

 

L5794GSI

Option I

Option II

Option III

Wireway harnesses / Mounting brackets
Ignition Coils w/ Integrated Harness
Single fuel inlet piping
Fuel Control Valves
HMI
O2 sensors
Differential pressure wastegate system
Conversion from Mooney gas regulators  
Power Distribution Box    
Gas regulator springs    

 

L7042GSI

Option I

Option II

Option III

Wireway harnesses / Mounting brackets
Ignition Coils Harness
Single fuel inlet piping
Fuel Control Valves
HMI
O2 sensors
Differential pressure wastegate system
Conversion from Mooney gas regulators  
Power Distribution Box    
Gas regulator springs    

 

L7044GSI

Option I

Option II

Option III

Wireway harnesses / Mounting brackets
Ignition Coils w/ Integrated Harness
Single fuel inlet piping
Fuel Control Valves
HMI
O2 sensors
Differential pressure wastegate system
Conversion from Mooney gas regulators  
Power Distribution Box    
Gas regulator springs    
  • Waukesha Engine Upgrades

    In-person and virtual training courses and programs are designed to make it easier for both first-time operators and experienced technicians to assimilate knowledge quickly and improve engine productivity long-term.

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  • Find Solutions, Parts, and Service

    Waukesha’s growing network of distributors, packagers and technicians provide end users with the freedom to choose the right partner to service equipment and provide ongoing support – all backed by Waukesha Engine’s commitment to service and support.

  • Instructor-Led Training

    In-person and virtual training courses and programs are designed to make it easier for both first-time operators and experienced technicians to assimilate knowledge quickly and improve engine productivity long-term.

Built to Work

Tougher

with enhanced reliability, availability and efficiency.

Longer

with extended service intervals and comprehensive engine upgrades.

Smarter

with enhanced controls and performance improvements through data analytics.

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At Waukesha, we’re working every day to design and build engines and programs that help power your tomorrow.

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