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1. Overview...................................................................................................................................... 3
2. The Haltech Wideband Controller (HWC) ................................................................................... 3
2.1. The HWC Module ................................................................................................................ 3
3. Mounting and Connecting the Wideband Controller ................................................................... 5
3.2 Mounting the sensor using a Bung. ....................................................................................... 6
3.3 How to fabricate a copper heat sink ...................................................................................... 8
4. First Time Use ............................................................................................................................. 9
5. Calibration.................................................................................................................................. 10
6. Remote display and recording of Lambda and/or AFR ............................................................. 11
6.1 Analog Lambda/AFR instrument.......................................................................................... 11
6.2 Connection to Haltech ECU’s .............................................................................................. 11
6.3 Haltech Digital Display (HDD).............................................................................................. 12
8. Tips, Tricks and Troubleshooting .............................................................................................. 13
8.1 General measurement requirements ................................................................................... 13
8.2 Vehicles with ‘smog-pumps’ ................................................................................................ 13
8.3 Measuring at the tail-pipe .................................................................................................... 13
8.4 Single Cylinder Engines....................................................................................................... 13
8.5 Diesel Engines ..................................................................................................................... 13
8.6 Reference cell or Pump cell circuit open or shorted errors ................................................. 13
8.7 Sensor Timing Errors ........................................................................................................... 14
8.8 Calibration tricks and hints................................................................................................... 14
8.9 Analog Output tricks/hints .................................................................................................... 14
9 Advanced Topics ........................................................................................................................ 15
9.1 Connecting the HWC to simulate a narrow band oxygen sensor........................................ 15
Appendix A: HWC Cable Pinouts ................................................................................................. 16
Appendix B: LED blinking codes .................................................................................................. 17
Appendix C: HWC Error Codes and Troubleshooting Tips .......................................................... 18
Appendix C: Limited Warranty...................................................................................................... 19
Revision History............................................................................................................................. 20
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