Looking for help deciphering tuning #'s

[fullahotair]

Would you guys/gals mind taking a look at these numbers from powerlogger? I can send the file if you have powerloger, but for those who don't have it, here is the situation...

I have adjusting the IAC to get it between 10-20, and the TPS to be at .42, so that the BLM hangs around 128. So...when it IS NOT in closed loop, life seems to be good....numbers seem to be in line, idle is good...
@idle
Coolant: 176
IAC: 10 -15
INT: 128
BLM: 126
RPM: approx 850/900


When it goes closed loop, it idles up and down, this is low:
IAC: 31
INT: 100
BLM: 121
RPM: approx 695

Then shortly thereafter the INT goes to 150, until the engine compensates with RPMS...The high:
IAC: 135 (sometimes up to 175)
INT: 100
BLM: 128
RPM: approx 1575

ETC, ETC...and mix of all that there are instance where the BLMs, IAC are where they are supposed to be...the INT seems to wonder and cause the fluctuations...

Any guidance would be greatly appreciated...

Thanks in advance..

Nate

 

[fullahotair]

I should probably post this snapshot as well...right before the RPMs go up to 1500 or so... the INT goes to 150....

IAC: 167
INT: 150
BLM: 129
RPM: 1100

it seems for the most part the INT is less than 128 (as low as 100), which would suggest a rich condition, then at some point the ECM pulls the fuel out to to a point it leans out too much, the INT goes to 150, the ECM dumps fuel in, and then INT goes to a rich condition (100) and then the cycle repeats? Is this telling me that I need to remove fuel?? and if so, at the trans + box first?

Thanks !
Nate

 

[fullahotair]

Question: If the IAC and TPS settings are within range when it is not in closed loop, does that mean they are set and I can rule those out of my list of possibilities...


Thanks,
Nate