TTX Plugin O2 sensor question

[ae82ted]

Does the TTXLink use the stock primary O2 sensor as the calculation for close-loop fueling? or do we have to add an external wideband O2 like other plugin ECU does?

 

 

[Vaughan]

Looking at our schematic the primary O2 sensor is narrowband and so no good for determining anything other than stoich, you will need to add an external wideband for proper Closed Loop Lambda