ECMlink Idle tune problem

[LTUDSM]

Im having problems dialing in the airflow.I can't get the airflowperrev to .25gm/rev. Its just bouncing around instead of being steady ,and i need to lower the airflow so damn low,to get close to .25gm/rev. What could cause me this??? Injectors are dialed in using ecmlinkwiki.......

 

[92AWDHX40]

Terry's Talon Troubleshooting Tips #3 - Fast Idle (aka. Idle Surge)

 

[LTUDSM]

Terry's Talon Troubleshooting Tips #3 - Fast Idle (aka. Idle Surge)

I don't have an idle surge,no boost leaks nothing.Had bad TPS before replaced it.ISC is in good working condition....

 

[snowborder714]

Maybe try doing a ECU > Reset fuel trims and then let the car idle a bit to relearn it. See if that helps or hurts your CombinedFT value, as it's currently very off. Your car should idle around .28 AirFlowPerRev, not .25 I believe, as it's a 2.0 engine.

 

[LTUDSM]

Maybe try doing a ECU > Reset fuel trims and then let the car idle a bit to relearn it. See if that helps or hurts your CombinedFT value, as it's currently very off. Your car should idle around .28 AirFlowPerRev, not .25 I believe, as it's a 2.0 engine.

It needs to be .25 AirFlowPerRev .27 AirFlowPerRev is used bya stroker . 2.3 i believe. I tried to reset the ft but nothing changed..... I was looking for any info about that,but couldn't found anything,that relates to my problem...

 

[snowborder714]

I know when v3 came out, the AirFlowPerRev number rose from .25 to .28 for stock engines, so that was where I got that number.

Might a leak before the turbo/MAS be causing some of your issues? You said you have no boost leaks, but I forget off hand what a pre-turbo/MAS leak will do to a log.


Man, do you really like coming up with the non-obvious/hard to troubleshoot problems

 

[LTUDSM]

Here is the log with airflow sliders zeroed out with reseted ft

 

[LTUDSM]

I know when v3 came out, the AirFlowPerRev number rose from .25 to .28 for stock engines, so that was where I got that number.

Might a leak before the turbo/MAS be causing some of your issues? You said you have no boost leaks, but I forget off hand what a pre-turbo/MAS leak will do to a log.


Man, do you really like coming up with the non-obvious/hard to troubleshoot problems

Whre did you get this info about numbers in airfloperrev being changed in v3?

 

[snowborder714]

I would say that that log looks better than the first. ISCPosition is closer to the goal, from what I remember AirFlowPerRev looks closer, your wideband is reading fairly lean for some reason though, and CombinedFT looks much closer, but could still use some tweaking after a drive or two.

 

[snowborder714]

I seem to remember talking with Tom around the time v3 was released about it.

 

[LTUDSM]

I would say that that log looks better than the first. ISCPosition is closer to the goal, from what I remember AirFlowPerRev looks closer, your wideband is reading fairly lean for some reason though, and CombinedFT looks much closer, but could still use some tweaking after a drive or two.

but airflowperrev should be bouncing?, or its supposed to be in a steady range??