TunerPro comprehensive XDF for 0411 PCM - with Checksums

[Chas]

The parameters that I included in the XDF were primarily from the multitude of parameters that Dimented24x7 originally defined. I attempted to select parameters that would likely be used the most frequently, or were most likely to help with typical tuning issues. The parameters that you mentioned - coil dwell and injection timing - are not ones that a DIY tuner has the knowledge to alter appropriately, and as such, would likely be rarely used.

LRT, don't discredit yourself either - I see a few new parameters that were not defined in Dimented24x7's XDF. And I certainly appreciate your organization; looks much easier to navigate and edit. For the coil dwell settings, you're right, it's not something often edited, but it's easily used if the coils are swapped. For example - I'm starting off with a 2001 Firebird calibration, but I'm swapping in the D585 truck coils. This swap alone is nearly worthless unless I could also bump up the dwell settings these coils are capable of. I hope to figure out where these are located. For the injection timing, my cam has more valve overlap. I'm curious to see if the injection timing could help save my cats??

[Chas]

Curious - are any of you using Firefox? I'm using v50.1.0, and I can't get my posts to keep the \newline commands. All my replies are being bunched together as one long post, ugh. \n Also I didn't get any email notification of replies to my post in this thread, but got emails from the other thread. Strange? - I think LRT figured this out: *** had to switch from the WYSISYG editor, to the standard editor *** I'll try this.

[LRT]

Chas,

Version 4 has been posted.

I added the Coil Dwell Time table.

I also added End of Injection Target (EOIT) constant and table. Good thing Dimented24x7 had already defined this table, as I would never have figured it out on my own.

[Scott68B]

Wow!Thank you for sharing this! Can't wait to to get it on my laptop.

[Chas]

Incredible work LRT.
Dimented24x7 and you don't give yourselves enough credit. Frankly, I wouldn't be taking on my project now if it wasn't for Dimented24x7 and you.

[Scott68B]

This is probably the wrong place to ask this but i'm wondering what table(s) defined in these XDFs one would use to adjust how fast the RPMs drop off in between shifts on a manual car? i'm using a 2001 f-body LS1 OS to drive an LS4 in my MGB. I have a Ford V8 T5 behind it. The RPMs drop off just a little faster than I'd like.Thank you

[LRT]

Too funny ... a common complaint on a conversion project is the RPM "hanging", or taking too long to return to idle ... you are having the opposite experience.

OK ... couple of assumptions ... that you are using a tune for a manual transmission vehicle, and that you have a clutch switch wired to the PCM (so it knows when you are clutch in / out while changing gears).

If so, then go to the "Idle" folder in the XDF. Take a look at the Rolling Idle and Throttle Follower parameters. You may want to add a small amount of airflow, or slow the decay rate of the removal of Throttle Follower air (extra airflow).

If this does not cause the RPMs to settle more slowly to idle (your goal), then take a look at the Throttle Cracker parameters.

Generally, a small change in airflow may make a significant difference. Proceed slowly, and be prepared for the RPM to "hang" if you go too far.