Narrowband output??

[TonyB_GT4]

Hi Rob/guys,

I have a mate with a Vems Wideband o2 & Egt, along with a PFC. He wants to use ditch his narrowband sensor, which is required by the PFC, and have the Vems unit output a narrowband signal in its place.

What is the best/easiest was for me to sort this out for him?

Cheers,

Tony

[rob@vems.co.uk]

Lambda Out
VEMS Wideband & EGT gauge can simulate the behaviour of a standard Oxygen sensor, and is configurable as either Narrow or Wide band sensor's output. This is not intended to be a 'drop-in' replacement for an OEM sensor, but can be used by some 3rd party ECU and Datalogging systems. Ask your dealer for specific information.
Narrow Band Output
For many OEM systems it will be possible to use the gauge's LSM11 simulated output.
Wideband Output
The gauge can be configured to output the lambda reading across a range of voltages to allow most aftermarket ECUs to use Wideband feedback. We recommend three possible outputs: 1V/Lambda, 2V/Lambda, or 3V/Lambda.
So if you select 1V/Lambda the voltage from the Multifunction Plug's Pin-1 will be: 0.8V at lambda0.8, 1.0V at Lambda1.
If you select 3V/Lambda then Lambda0.8 will give 2.4V and Lambda1 3.0v
Configuring Lambda Output
In MegaTune goto the Menu option Settings->Inputs and Outputs, and you will be presented with the following screen:

To set the output we use the Analog output settings box:

    * Narrow band - Enter 1
    * Wideband 1V/Lambda - Enter 51
    * Wideband 2V/Lambda - Enter 102
    * Wideband 3V/Lambda (Motec default) - Enter 153

More details can be found at http://www.vems.co.uk/VEMSWB/UserGuide/README.html

[TonyB_GT4]

Spot on, cheers Rob