DBW Idle not keeping it on 950rpm

GENERAL
1

Hi everyone,

I’m currently running V3 — thanks to all for your help so far.
I have an issue with my idle not staying stable at 950 RPM. The RPM tends to drift up to around 1080 RPM, and when I blip the throttle, it drops back down.

To stabilize the idle, I performed a calibration where I increased the base idle setting and reduced the idle ignition correction to -10 degrees. This helped somewhat, but I know it’s not the correct solution.

Could someone please guide me on how to properly set up a stable idle?

Also, when my aircon engages, the RPM drops drastically to about 300 RPM. Any advice on addressing this would also be appreciated.

2

Thanks for the V3.048 release — my idle and cold start are now spot on! When cold, she idles with the ignition lock at 1250 RPM, and as she warms up, it drops smoothly to 960 RPM.

Does anyone have the configuration settings to raise the idle when the aircon is switched on?

3

N a setting issue or DBW issue. Car runs fine, but deceleration while in gear to a stop causes the car to die when the clutch is pressed. If I blip the throttle before it dies, it idles. Can’t seem to figure this out. Calibration done; no issues. Oh, if I barely touch the throttle, the idle goes down and then up.

4

I see my map is going in to 14KPa can this be the cause of my car to die approching a stop .As my fuel table starts from 20Kpa?
20250424_1717.emublog3 (5.7 MB)
EMU V3_0.48 DBW_IDLE_Issue.emub3 (66.8 KB)

Does the below look correct should TPS and PPS voltage match

image
image1130×575 47.1 KB

5

I have tried everything i can think of, i am not getting a strong idle. The Idle is or to high and then to low or dies’

6

Does anyone have an audi s3 8l bam v3 dbw settings that i can try

7

You looking on completely wrong things dbw setup is correct is working dbw follows the target so is nothing worng with dbw setup. Wrong is your idle setup i suggest study carefully the help section in the software and try to understand strategy than try to adjust it

8

Hi Greg , thx for reaching out and your advice. I do agree with you. I am deffnetly missing somthing on the idle. Last night a checked the PPS possition from 0.2v to 4.8v if i press the PPS on the log it is showing 100% full. The issue comes in she would idle on 950rpm and then if i blip the throttle it drops to 500rpm. If i blip it again it stay’s on 1200rpm and driving to a stop she dies or sometimes almost die and restores again. Also swapped the throttle body. This is the only thing i can’t seem to figure out. All my sensors work. Knock sensors work , fuel presure , oil presure sensors work. Speed , flex fuel and egt works .Long story short just the IDLE