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Starts, runs fine. Goes into gear with little RPM increase,(ok), problem is it drops idle about 3 to 4 hundred RPM going into N from D or R, then catches and Idles fine, no surging, just drops then to good idle. If I go straight from D to R it stalls.
Have been in Idle torque and throttle, gets worse, so I go back first tune I made. What should I be looking for?
If you correct fueling it will probably get a lot better. I would disable neural network and dial that setup in Speed Density
Reduce garage shift torque reduction in torque management setting. Just zero it out and see what that does. It pulls a lot of timing when making the shifts. I think that table has more effect that what you would think based on how it's labeled. It did look like RPM was starting to creep up at one point when in drive so not sure if it was just reacting to that pulling timing or not but looks like it started putting the timing back in it when you left it in gear.
Thanks. Been down that road and it was a disaster for me. Right now it is running and driving great, just that one tiny issue. I think it's still in the idle airflow P/N torque throttle/spark tables. I tend to change too much instead of little changes.Quote:
Originally Posted by tbrtuning
Thanks, I'll try that.Quote:
Originally Posted by tbrtuning
Link to cam change, inside engine looked pretty good.
https://www.lxforums.com/board/engin...installed.html
Reduce them a lot if you haven't already. Maybe even zero out corrections for close to zero error so it doesn't attempt to make a correction.Quote:
Originally Posted by coanan
I probably wouldn't leave the spark min tables zero but for now will help keep it from getting too unstable until you dial it in. Here's an idea of what I mean with some quick changes for making it where it doesn't correct as much to cause over and under shoot of RPM. This isn't from tune I've done with this cam or anything but made a couple quick changes to show you.
Attachment 98047
Super, I'll give it a shot tomorrow. ThanksQuote:
Originally Posted by tbrtuning
Tad worse. Installed first tune back in. A/C seems to affect it most, turned off and I get pretty much no drop or bounce in RPM going from D to N, R to N.Quote:
Originally Posted by tbrtuning
Best so far. What settings affect the A/C? Turn it off and it's a lot better but still drops a little then back up.
Went back to older precam tunes and changed a lot. Raised RPM also to keep it from dropping too much. Went through changes in Idle torque spark/throttle, seems only to make it worse.
Reduce throttle body airflow some and see if it gets better
Hey. think that was one of the things I tried last night. Went to my pre cam numbers, was worse, I actually upped these numbers a little. One thing that sticks to mind was the tuner I originally worked with told me the eng was taking numbers he normally didn't use, needed higher. He said it's an odd ball. I'm gonna run this tune now seems to be so so, not stalling out anyway and work on fueling.Quote:
Originally Posted by tbrtuning
Made some small changes to idle torque spark max drive/Max P/N and idle torque throttle integral drive. Could be me, but it seems better.
Trying to tame idle. Made some graphs in scanner, used info 06300CSRT8 wrote up, wish I had his brain,(https://forum.hptuners.com/member.php?35094-06300CSRT8) hope I got it right, just don't know what to do with it. Log and tune to look at, isn't too bad.
Had some math wrong.
Adjust your minimum airflow and startup tables.. message me for a tune. Demigodtuning on fb