I'm not really sure what's adding to my idle air in gear. I tried setting all transmission shift airflow numbers to zero's and to very low numbers, and I don't see any difference.
In this log, I waited for the truck to settle into the 850 rpm desired idle. It's not the most stable idle, but it's a pretty big cam. I'm trying to work through the base idle airflow table in order to smooth it out as best I can.
The log starts with the truck in park. At 5 seconds, I click it into reverse. You'll see the throttle correct a little, but overall the RPM stays in a similar range, it's got a Circle D 3400 stall converter, so there's not much difference in load from the transmission at 850 RPM in gear or in neutral.
At 15 seconds, I click it into neutral, and then at 20 seconds, I click it into overdrive.
The moment I put the shifter into OD, the TPS increases from 18.8 to 24.7, and you'll see that my RPM is now 1000+, even though commanded is still 850. Idle adaptive advance is trying to pull the RPM down, but it can't, and the throttle will literally stay like this no matter how long I drive...every time I come to a stop, the engine is pushing against the converter. I tried pulling air out of the in gear rows of the airflow final minimum table, but it doesn't seem to matter. Something is adding airflow, and I don't know what.
Any advice where else to look? Any differen't PID's that I should scan?
idle air.hpl
Rev7.hpt