When my engine is fully warmed up, I have the IAC steps set at 0 to get the most amount of air flow over the throttle blades. Because this TBI is installed in a boat I only need IAC adjustments for cold starts and warm up. When I start a cold engine the IAC steps start 144. When they decay, I would expect them to decay down to the step value in the IAC - position vs temp table. Below is a snap shot of a cold start data log. Notice how the IAC decays down to 33 before it stabilizes. If the temperature is 16 degrees C shouldn't it decay to 75 steps?

IAC data.jpg
before tune 05-26-14.bin
log1 starting to warmup.xdl