what could cause this?

[fastTa]

anyone????

Everything appears normal for an idling cold engine. Your coolant never even got above 88 deg F. These numbers honestly don't mean squat.

You need to let the engine fully warm up, then do a movie capture while your driving it. And a few WOT passes would be a good idea to look at the trasition from part throttle to PE mode and what is going on in PE mode.

Your o2 sensors "appear" to switching within the normal voltage range, but there is no way of being able to tell for sure until they reach at least 600 deg F. It is also difficult to see the "big picture" with movie capture like this one. 02 sensors switch very quickly(over a 1000 times per second), so it is hard to capture the switching "big picture". To more accurately do this, you might consider using a scanner that has a graphing ability and the ability to show you crosscounts.

[Injuneer]

The IAT and CLT are in degC. IAT = 32degC = 90degF; CLT 86degC = 187degF..... unless of course he was in Alaska on a cold day

Its really impossible to work with the TXT file, and its a PITA to push it into Excel. Do yourself a favor and learn how to export a .csv file. I like to put is in a spreadsheet, and look at the max, min and average values for many of the columns. That allows you to treat the O2 readings, for example as samples, anb by taking the average, you can (hopefully) verify that they are averaging 450mV.

It appears that it would be running rich, and the PCM is pulling out fuel to get it back where it belongs. The BLM's are dropping over time... left side is down to 114, and the INT's are still below 128, inidcating that the PCM will continue to drop the BLM's. It's pulling 11% fuel out on the left side.... a little more and the BLM will hit its lower limit.

Other than that, everything looks sort of normal. But as noted, its just a tiny snapshot. You need extended period of data, including normal/part throttle driving in a wide range of Cells, and some PE/WOT data as Kevin pointed out.