Can HP EFI use two WBO2 sensors?

[Ebdb]

Sorry, but couldn't find it in a search.

[AndyF]

Last I heard you could add a second wideband as a sensor and display the output, but the EFI software wouldn't allow you to use the second sensor for fuel control. You need the Dominator ECU to do that.

[Danny Cabral]

Yes, some HP users (and now Terminator X/X Max users) add a 2nd stand-alone WBO2 sensor, by wiring the controller's 0-5V Output into a 0-5V Input (created in the Holley EFI Inputs/Outputs ICF) for monitoring/datalogging purposes; just can't run Closed Loop off of it. (Dominator EFI users can add 4, 6 or 8 stand-alone WBO2 sensors for monitoring purposes due to the increased I/O - LINK.) Only the Dominator ECU is capable of running Closed Loop with dual WBO2 sensors. Just so we're clear, you must use the Holley EFI Bosch or NTK WBO2 sensor as the primary "Wideband O2 Sensor" (Engine Parameters). Terminator X/X Max users can only use the Bosch LSU4.9 WBO2 sensor (LINK) with the Holley 558-463 WBO2 Adapter Harness.
http://forums.holley.com/showthread....8389#post58389 (How To Create A Custom Input/Output)
https://forums.holley.com/showthread...668#post225668 (Additional Information - Related Forum Thread)

[Ebdb]

Thanks a million.

[Rick90lx]

Interesting approach to look at each cylinder; never thought of that.