erratic miss after start up

[carnot]

-1995 Honda Prelude SE
-p75-s300
-GM 3 bar map sensor, RC 550 cc injectors, PLX wideband

I am getting strange jerky output from the motor just after startup at very light load while driving around my parking lot. It feels like the motor is missing. The behavior is captured beginning around the 1:23 mark in the uploaded datalog. This is the only time it occurs in the datalog. I think there might be an issue with the MAP sensor but I would like to know what you all think. Thank you for any feedback or suggestions.

[hondatechpr]

Verify you idle control valve and fast idle valve

[carnot]

I replaced the vacuum lines running to the MAP sensor yesterday and have not experienced the problem again. I will put an update if the problem occurs again.