EFIDynoTuning Forum

Question is why wouldn't this have happened in previous versions? My IPSIBR has been as high as a kite in the past. I had made adjustments to the throttle stop but I know it still needed more. With the latest .bin, it just seems to be perfect. Not complaining - just seems too easy.

Right ... so is this some of the magic of the latest A9L2 .bin?

So I ran an old log with the new .adx and the DESMAF_PID_N appears as expected. Ran the latest log with an old .adx and the DESMAF_PID_N just sits at 0. Throttle stop has not changed between the two logs.

Is there something in the .bin I could have messed up to cause this? Below are the only changes that have been made from the downloaded version. I did do something out of order but thought I had that sorted.

02/20/2021 13:19:56 Scalar: SP** (WARNING) AHISL - Injector High Slope **SEE COMMENTS** changed from 19.641 lbs/hr (0x13A4) to 28.980 lbs/hr (0x1CFB).
02/20/2021 13:20:09 Scalar: SP**ALOSL - Injector Low Slope [lbs/hr] changed from 38.510 lb/hr (0x5AB6) to 34.606 lb/hr (0x5184).
02/20/2021 13:21:18 Function: SP** FN389 - Injector Breakpoint (lbs/pw) (FUEL_BKPT) changed.
02/20/2021 13:22:28 Function: Crank PW ECT Modifier - FN348 changed.
02/20/2021 13:26:21 Function: FN035A - Boost Threshold (Peak NA Perload Scaling) changed.
02/20/2021 13:27:48 Function: SP** MAF Transfer - kg/hr - FN036 changed.
02/20/2021 13:33:24 Scalar: SP**_SARCHG - Engine Size Displacement changed from 445.61 Cubic In. (0x29CF) to 302.01 Cubic In. (0x1C56).
02/20/2021 13:48:54 Function: Injector Offset - FN367 changed.

Yep - downloaded the .bin, .xdf and .adx just after the new forum kicked off (but before the latest .adx and version of TunerPro).

Well, clearly there is no need, thanks. That being said, I was expecting to have to do something to dial in the warm idle.

I have been tuning on A9L and progressed to A9L2 for the mechanical idle. When I got there, IPSIBR was way high and I was starting to make adjustments to get it down. I had left it for a while and along comes the latest A9L2. Why not! I downloaded the latest earlier this year, applied the basics along with what I’d done for fuel up to WOT and also load. Went pretty well so I looked at hot idle. Now IPSIBR = 0 at all times. Driving. Idling. Everything. ISCDTY sits at 0.15 at idle, never lower and lifts during driving. Idle is 725-750RPM warm.

So it looks good an paper but it hasn’t been touched.

Is there some magic in the latest A9L2 that takes care of hot idle completely?!?!

Thanks, that's great.

My idle is about 50 under desired, with ISCDTY at 0.15 and DESMAF_PID_N at 0. How can this be increased?

All

Just getting going again and have a few questions about the latest .adx.

Which history table is the one for dialling in MAF. Older versions had just a few, the latest has LOTS! There was one which was MAF v FE%. Easy. Not sure which one is best now.

It appears IPSIBR has disappeared. The write up in the GUFX thread suggests to simply get ISCDC to <35% by adjusting the idle screw. I am assuming ISCDC the same as ISCDTY. Mine appears pegged at 0.15 at idle. Does that mean I need to close the idle screw?

Thanks in advance