7730 tuning help with A1 file

[88GTTuesday]

Thank you for all the help. I really appreciate it. It will work on this this weekend. One question though, does it matter that I have a 5 speed? It's worded like it for automatics(drive,park,neutral). I forgot to mention before it's a manual, not sure if it matters.

[1project2many]

There should be a Flag for Manual Transmission. Often when this flag is set tables for park are used at all times.

[woody80z28]

I run a 3400 in Beretta on $A1 7730. The surging idle is hard to fix. The biggest improvement I found was actually replacing my Bosch o2 sensor with a Denso. Had a few friends that had the same problem and they all improved with a Denso o2.

Once I cammed it, I cut both the idle spark vs idle error tables in half and it helped.

[88GTTuesday]

Not sure what O2 I have and don't remember when or if I replaced it. I was thinking that I replaced it at some point but not sure. My engine is the 3.4 pushrod, since you said 3400 I'm assuming its the roller cam with aluminum heads. not sure if that makes much of a difference.

[woody80z28]

Mine is the pushrod gen3, but that shouldn't really matter to the o2 sensor.

[88GTTuesday]

Sorry it took a bit to get back on here, it started raining last week and trying to finish up too many projects before winter. I increased idle in the F17 and F19 tables to 1100 so at no temp it goes below that. It idles smoother for sure but still dies after the tiniest bit of throttle. I gave it gas enough to increase the rpms a few hundred but as soon as I let off the gas it dies every time. So I'm thinking its something other than low rpm and the surge causing it to die. Any idea? One thing I noticed is it is running rich at start up. doesn't hit target AFR till closer to 100deg.

[woody80z28]

Hmmm. That's something I've never heard of. What does the injector pulse width go to when it dies? Watch the log history and see if it falls off a cliff.