3 bar SD open loop idle rich and hard start cold

**jay_rich** · April 3rd, 2016

Here is the one I used. Date was October 20th 2008 from jocar. Newest one I found.

All I did was change the 156 onr to 02020003

TF+LC-2008-OCT-20.zip

**statesman** · April 3rd, 2016

Yeah, that's an old one.

Download this one in case you ever want to change the minimum transient fueling....

https://forum.efilive.com/showthread...l=1#post159352

I'm giving you the link to the post because it has 3 different cax files and that post tells you which one is for which OS.

**statesman** · April 3rd, 2016

That old one will probably clash with the parameters now available in EFILive so get rid of it.

**jay_rich** · April 3rd, 2016

Awesome thanks. So I downloaded the proper one. That one has the B9021. but none of the transient fueling.

Changed B9021- to 0.592xxx to match my B4003 and 4004

What exactly does this do anyways?

Jay

**jay_rich** · April 3rd, 2016

Well the b9021 made it worse. Or the 3.996 threshold did.could not crack the throttle without it backfiring and trying to die.

Went back to 1.9xxx threshold and no b9021 and it runs mint.

Jay

**statesman** · April 3rd, 2016

It's the 3.996 threshold which made it run worse. Put B9021 back to 0.592 so you don't get a rich decel. B9021 is another minimum pulse like B4003, it limits how short a pulse can be.

Can you post a log?

**statesman** · April 3rd, 2016

Post a log of it running with your current settings. Make sure that you're logging injector pulsewidths.

**jay_rich** · April 7th, 2016

Sorry was out of town for work. I have a few logs but changed some airflow settings back to stock as it was holding a high idle in park. All seems good now. Put the B9021 back in with the threshold at 1.9. Tip in a great etc.

Here is the warm idle after changing the startup friction and pulling a tad out of the desired airflow when warm. I was messing with the throttle crack a tad midway through the log. that would be the jump in RPM Seemed like I took a tad too much out of the desired so it was idling a bit under desired.

Pulse widths around 1.8ms

Thanks for all the help!

Jay

**statesman** · April 8th, 2016

I had a look at your log and your trims are pulling a lot of fuel trying to keep you at stoich. You might have to do a bit more tuning in the idle area.