ECUflash o2 sensor doesn't seem to be cycling, evoscan log attached

[gieri002]

Well I just started up my freshly built 2.3 stroker and did a quick idle log. Upon initial inspection my o2 sensor doesn't seem to be cycling properly and my AFRs are way off (using db9 usb to serial adapter rather than 5v signal to the ecu per ceddy's suggestion) . I was hoping one of the evoscan pros could check out my idle log (quick rev at the end) and verify this before I go blow money on a new sensor (or possibly just simulate the narrowband). Does anything else look off?

 

[gieri002]

I should also mention that this is a totally stock tune on stock injectors. I'm just trying to make everything is smooth and all my sensors are functioning properly before I start tuning. Of course a boost leak test has already been done.

 

[gieri002]

I went ahead and replaced my injectors with some much larger fuel injector clinic injectors and the condition seemed to have worsened. Still looking for ideas.

 

[gieri002]

Where are the evoscan pros?

 

[gieri002]

This has been resolved. I thought I would update since there isn't much for support in the ecuflash/evoscan community, hopefully this log can help someone else. I ended up replacing the o2 sensor which is cycling now and I fixed a small boost (throttle body seals).