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Perfect Power Piggybacks and Stand-ALone ECUs

Please be patient, certain parts are made per order and require time to manufacturer. All parts will be immediately shipped as they become available. All prices do not include any core charges, shipping, taxes or installation charges. All orders are considered 'Special Order' and are paid in full at time of order via wire transfer or as agreed. All pricing must be verified the day of quote, at time of order, at time of shipping and will be adjusted based on the value of the Dollar Internationally. Any deficiency is immediately due upon billing and before delivery.

Perfect Power Products

The Perfect Solution to a Powerful Engine Management System

WBC Wide Band Lambda Controller

WBC Wide Band Lambda Controller

The WBC purpose is to “operate” a BOSCH LSU4 wide band lambda sensor for the accurate measurement of AFR values from 10 to 20 AFR.

  • Small size
  • Temperature controlled heater circuit
  • Indication of heater and sensor malfunction
  • External fault reporting
  • Linear 0-5 Volt output reporting AFR
  • High-resolution lambda conversion
  • Bar graph AFR indication
  • Low power consumption


Supply voltage: pin 5, 10-16 Volts
Short term supply voltage: 36 volts, 20ms
Supply current:

<50 mA

Operating temperature: -20 to +60C
Encapsulated Yes
Fault reporting output: pin 10, 1 mA in to short
Analog output:

pin 4, 0-5 volt

Analog output drive: 2 mA
Heater current:

Max 3 Amp

Heater ramp-up time:

16 seconds, < 0.4V/s


The WBC purpose is to supply a linear analog output voltage to indicate AFR and to indicate proper circuit operation and installation.

$550.00 USD plus shipping

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